I can't live my life like this!

Friday I was babysitting for my friend, I had massive cramps before she left but didn't want to say anything then got awful d*text her and asked her to come home, but she said she was too drunk -.-
It went away after a few hours and I have been fine.

Until tonight! Yesterday my mum and dad had some friends pop by, one said she had just got over a sv*, she didnt use the bathroom or anything and I washed my hands alot.
I went to dog training this evening and suddenly got cramps and felt n*, it passed and we picked some chips up on the way home, I ate them fine, then was sat here on the computer and suddenly got the worst cramps ever, had severe bouts of d* and bad n*.

Now Im panicking its either a sv* from my mums friend, a sv* from else ware or fp*

HELP!

I have already sh'd and pulled loads of hair out through panic!