Thrush - Not sure where else to post this...Please help.

[helpsavemeplease]

About 2.5 weeks ago, I had protected contact w/ a SW. First time (and last time) ever doing this. In complete panic, I took full panel of std tests 2 days after contact and again after 14 days, all negative. I was given one dose of Suprax and Azythromiacin to clear certain symptoms I was feeling - took these meds 3 days after contact.

I felt an abundance of guilt immediately after the act and 2 days after contact, experienced tons of anxiety and began feeling burning acidity in the top of my abdomen. The next few days resulted in diarrhea, which has since subsided, but I have not been regular since then (not loose, but not solid BMs). The 4th day after contact, I noticed my tongue was coated white. Since then, the acidity has reduced; however, it looks like I have thrush. My cousin, who is a GI, face timed me and looked at my tongue. He wasn't 100% sure, but went ahead and prescribed me swish and spit nystatin. I am also experiencing some itchiness on the palm of hands, bottom of feet, and front tip of arm pits. Temporary rashes/redness appear on my hands then go away.

Here are my questions (asked in hiv form, and said not at risk): 1) any thoughts in general as to what is causing this? 2) can the antibiotics have caused the white coating on my tongue? 3) can the acidity I was feeling have caused the white coating on my tongue, 4) is the white coating on my tongue thrush or could it be something else, 5) what would you recommend I do...