Dog is obsessively licking at things.

Hello. I have a question about my dog. I think she's experienced some tummy troubles. She has often had those, but was doing so well for the last year on dehydrated raw food like Honest Kitchen, Grandma Lucy's, and Stella & Chewy's. I was also giving her a small spoon of yogurt and virgin coconut oil, and her allergies/lifelong feet chewing had literally disappeared days after I started the yogurt/coconut oil. Anywho, I was giving her Joint Support tablets for a few days (for dogs) with Glucosamine/Chondroitin. I only gave her 1/4 of a tablet (she's a 15 pound, 9.5 year old mini poodle mix, spayed) as well as 1/2 a tablet of a thyroid supplement (she's been diagnosed as mildly hypothyroid). Then, after a few days, she started licking everything at night. Her bed, the floor, the chair. Only in the middle of the night, though. She had no diarrhea, no vomiting or other symptoms except this. I thought she was nauseous and she wanted to eat grass, so I changed her to a bland diet of boiled skinless chicken and white rice. I'd previously been giving her Stella & Chewy's Rabbit (dehydrated raw food, but I actually put boiling water on it, so it cooks.. the raw gave her diarrhea 1-2 times a month, at least). She did well for one day, no licking, nothing unusual, then the next day had the same licking symptoms and gurgling stomach (this happened before, years ago, when I was giving her chicken and rice or homemade food.. that's why I switched her to commercial, and her tummy did better overall). This happened on and off, one day fine, next day gurgling tummy/licking. I gave her the appropriate dose of Pepto Bismol and she seems to be doing better with that. Her appetite is the same (pretty hungry, usually), no vomiting/diarrhea, I haven't seen tapeworms in her stool (she's an indoor dog, hates the dog parks and other dogs, so she's not around them too much). The only usual thing is that she had pretty bad breath right now, which she does sometimes, it just seems somewhat worse right now. The vet has checked her teeth and said that they're okay for now, don't need an immediate cleaning. She had a blood test probably about 16 or 20 months ago, and everything was fine at that point, except she's hypothyroid slightly. The Pepto seems to have really soothed her tummy, so I would guess that it's tummy related. Maybe gastritis/acid reflux, or...? I'm not sure. I know you can't diagnose a dog from afar, but I'm just curious as to what your guess would be is wrong with my dog.. She's overall fine right now, I'm just afraid if I stop giving her Pepto (I've given it 2 days so far) that she will go back to having tummy troubles. I'm not sure which food to give her, either. If her tummy troubles return after I stop the Pepto tomorrow, I will take her to the vet next week. Thanks for your help, I appreciate it so much!

Oh, and I did read that fleas can infect a dog with tapeworms.. she did have a flea that we found/killed about 3 or 4 weeks ago.. but again, I haven't actually seen any tapeworms in her stool. I think I know what they look like (as far as I know), as I've seen them in her stool when she was just a puppy, when I'd first gotten her. The only other unusual thing that I can think of is that she has a little scab on her ear, not sure where it's from, that had bled apparently, and now is like a dark brown scab, very tiny.. on her outer ear. It might have been from a sebaceous cyst thingy that popped recently, but I don't remember the exact location of that cyst. I just know that it popped because it's no longer there. I just put some antibacterial on it. It's healed, though, as far as I can tell. Thanks again. :)

Thanks.. Right, Pepto is something I wouldn't consider using long term, just for a few days. Now that you mentioned about something caught in her teeth, I'm wondering if it might just be something tooth related. The vet looked at her teeth the last time I was there, which was probably early 2014, so he hasn't seen them recently. I've checked her mouth myself and noticed no swollen gums or loose teeth or anything, but still.. Could she have a rotten tooth or something, even though there is no swelling/loose teeth/bleeding/excessive redness/excessive plaque/etc? Her teeth look like they always have, actually maybe a bit cleaner because I've been taking better care of them.. The thing is that this licking behavior is pretty much at night and not really during the day. I woke up several times last night with her licking, and this morning when I first pet her, she was reaaaallly wanting to lick me. She's not TOO much of a licker. She does lick me everyday, but not to this extent. I just find it weird that it's mostly at nights.. could there be a reason for that or..? I know that's a rather weird question, sorry. ;) :P

I see.. can you think of any reason this would mainly be occurring at nights? The licking behavior, I mean.. Thanks again.