My dog starting sneezing late last night so we thought she had a cold. I google if we can give her tussin cough syrup and it said we can. I gave her a little adult Tussin around 1130pm (which has active guaifenessin in it). She didn't sleep at all last night and neither did I. So this morning around 6am as I was getting ready for work so she still seemed in pain so I gave her a pain medication that she had left over from her surgery a few years ago. Now it's 5 pm and she won't really move she just stands there with her head down. I called the vet they told me to call animal poison and they want a lot of money which I don't have to just tell me what do. If anyone has any suggestions please let me know.