Watery Discharge

I have watery discharge, my panties will be wet I have to change them constantly. The fluid smells like Amoxicillin I was on the antibiotics for maybe 10 days prior to this happening. I have this itchy feeling down there. I have no idea where it’s coming from it all started out of no where I’m not sexually active haven’t been in a while. nothing in showering routine change I still use mild dove soap I’m so confused. At first there was an yellow thick discharge now that’s gone and it’s just water it seems like.