27f acid reflux takes from a few minutes to 2 hr after eating and usually takes 6+hr to stop. taking 40mg nexium and famotidine 20mg twice a day. lost 35lbs and eat no trigger food. sleep upright. can't go to gastro until next yr. what else can i do?

35 lbs weight loss is a lot . Do not wait till next year. Need endoscopy ( eosinophilic esophagitis , ulcer, bile reflux) and likely imaging -ultrasound for gallbladder/ pancreas as well as blood work and testing for H. Pylori ( which is not expensive even if you pay out of pocket) . Follow up with free clinic in your area or ER , but you should see someone within 1-2 weeks.

It sounds like you are doing many appropriate measures to help avoid acid reflux. In addition, you could consider taking a liquid antacid such as Mylanta or Tums whenever you have heartburn. You should try to take your Nexium about 20 minutes before eating some food. Good luck.