i have noticed recently that my tongue is white and kinda slimy. i have been on antibiotics for a couple weeks. first flagyl for a bacterial infection, now macrobid for a UTI. im 22 wks preg so im currently prone to vaginal and bladder infections. could the antibiotics be making my tongue white. i finish the antibiotics on saturday. should it go away when i stop taking them? also i have been having a lot of mucous in my throat and i feel like i constantly need to swallow. i have a dr appt on june 3rd should i just wait it out til then and if it doesnt go away ask about it or should i ask sooner?