Jolts of dizziness from stress? Make it go away!!!?

So I've been under a TON and ton of stress, we've been having to force feed our poor kitty due to liver disease/him not eating. Anyway I'm prescribed xanax for anxiety, I rarely ever take it but due to stress I took two or three a couple days ago...I'm still having these HORRIBLE jolts of dizziness. It doesn't hurt but they just hit me wear I feel drunk can't walk, it might be due to lack of sleep too...any way to make it go away? I haven't taken the xanax in like a day and a half now or anything else. My stomach has also been so upset...been having diahrea 3 days straight now. Maybe it's just stress I dont know....any tips to make the dizziness go away would be great.