Why when i wake up in the morning and get a drink does it have a eggy taste to it? i floss and brush my teeth twice a day and rinse with breath rx mouth wash. it seems to only taste like that in the morning when i drink something before i brush my teeth.

Change routine: Get your teeth professionally cleaned by your Dentist to create a base line. Make sure to floss or Water Pik daily. Brush at lease 2x/day 2 FULL minutes by the clock. Brush last thing before bed. Brush upon awakening (before eating/drinking) to remove bacteria. Also gently brush top of tongue. If eggy taste persists have your physician check for GERD, medication side effects, diet, etc.