I was sleeved September 20th and I have lost 50 pounds !! But I have been at a stall for about 2 weeks now. Very frustrating does anyone have any advice?

Just keep doing what you are doing. The stall will end soon. You lost a ton of weight rather quickly, and it will take a bit for your body to catch up. Most people would love to have that amount of weight loss in three months, much less a month and a half. You are doing great. Keep your head up!

Try adjusting your macros a little. If you have been very low carb, eat a few more carbs. Try higher/lower fat. Consider adjusting your exercise routine a little. When I hit a stall, I got past it by eating a few more carbs, but everyone is different.