Not feeling well

Dilemma time.

I have an upset stomach - nothing explosive or anything, just achy and bloated and slightly nauseous with accompanying "runny bottom". Nice. Consequently, I don't feel so great.

If I want to be on time for rehearsal tonight, I need to head out in 25 minutes or so.

I really want to go to rehearsal, last week was awesome and I don't want to miss anything.

On the other hand, I'd actually quite like to go to bed. Especially as I don't want to be ill for the concert tomorrow.

I hate decisions like this. And I'm not in a fit state to make sensible choices.