BV or Yeast?

Erin
I am sexually active. Happy and healthy with my BF. Was tested before and after we started and I am clean. He assures me he is clean and has been tested. As I am his second sexual partner and we are very open I trust him. 
I am also diabetic and was on a med that caused chronic yeast infections ( I have just stopped). I thought I was having a bad infection but I am not sure there was telltale tangy discharge soreness and tenderness in the area itritation when I Peed but Idk. One day it smelled fishy ( only one time) and the irritation lies mainly in the area Btwn rectum and vagina. 
No sores still discharge. But the flesh is tender and fragile. Doing number two stretched and cracked skin. Causes little bleeding. Have also noticed I am more dry. Boyfriend started to initiate sex and I was turned on but still dry.
I  am a worry wart and know this is a lot of rambling but help please.