How i taste?

So I’m really embarrassed even having to ask/post this but my bf hasn’t been wanting to go down on me much anymore because he says it’s not tasting good or he’s paranoid that it won’t. I’ve asked him what does it taste like and how bad is it but all he says is he “can’t explain it”. He also thinks about how many times or how long it’s been since I’ve peed.. we never used to have this problem but now I’m hyper sensitive to my own smell and feel very self conscious of myself. I don’t ever smell anything too crazy. He doesn’t always taste great himself but does my taste mean something? Should i go to a doctor? Although I’m kind of embarrassed to. I’m feeling really ocd about this. Very self conscious.