What Causes Hot Flashes And Bloating In The Upper Abdomen?

Hi I m a 46 yr old women that in the past few years I ve been getting hot flashes that last maybe a minute. I also have bloating in my upper and lower stomach. My hands shake when I feel hungry and most meals I eat 20 minutes later I m starving and hands shake like I haven t eaten. I get a burning on the side of my belly button sometimes but not all the time. I went to Dr over the years and been threw tests for ins, gasterlogic, ultra sound, and pills for constipation and gas none seem to work. I also hear my gall bladder make weird noises like I have gas but nothing happens.Also I don t have a sex drive and my last period was 4 months ago. Been trying to take different foods coffees drinks away from my diet to see if it feels better but have had these symptoms for years and no one can help me Drs get tired of seeing me. I don t know what to do but I m miserable being fat. Threw this process my energy level went way down and I ve tried to exercise and eat right but still can t loose weight or the bloating. Plz help if u can thank u.