Thank you so much for both of your responses, Cami and Tuff Love.
First of all, I had a feeling that some of the time, the upset stomach is caused by the "empty stomach" syndrome. I try to have scheduled times for Bridget to eat, however she doesn't always want to eat at the times I put her food down. She seems to get upset or depressed if my husband isn't around at dinner time and seems to wait for him to come home and then she will chow down and that could be 12 hours or more since her last meal. I really don't know what to do about that. Tomorrow he will be leaving for a two week business trip and I really don't know how I will handle that situation.
Secondly, she is now being treated for either a UTI or vaginitis (the vet said she is very irritated there and couldn't tell what was causing that irritation, however I found bloody urine drops in the house which prompted my visit) She is on Clavamox now, but will be finished soon with the anti-biotic. I do have a follow up visit scheduled for a blood draw on Saturday where the vet will be checking for a thyroid condition, due to the fact that she is shedding like crazy. In five years, I have never seen her shed like this. She has also gained over 10 pounds within the last year, so the vet feels that she does have a thyroid condition.
All that being said, I didn't realize that the thyroid could give her an upset stomach, which is usually about on the average of 4 times a week or more and started long before she was on the medication and also on a full stomach at times. It would all make sense to me now, if that is the diagnosis though. If the Pepcid will help with her discomfort, I will ask the vet for the recommended dosage. However, when do I administer it to her? I can't imagine giving it to her while she is licking and gagging which when it happens can last on and off for several hours.
Thanks for all your help!!