Permanent weight issues with LDA

I have always struggled with my weight, varying between 160 and 240 pounds as an adult. A couple of years ago my doctor at the time suggested LDA for my CFS. I knew of the research coming out of Stanford so I agreed to give it a try. Unfortunately I put on about ten pounds in two weeks or so on the medication. I spoke to my doctor and immediately stopped taking it. Fast forward a couple of years and I've put on an additional 25 pounds. :( I'm now at my highest weight ever. I know I can't be active because of the CFS and I have a healthy appetite but it seems excessive to gain this much. I don't eat junk food or drink sugary drinks, ever. I got a complete blood workup with a new doctor last April and everything was normal, including a full thyroid panel. I've been trying to research whether antipsychotics can cause permanent weight gain but I haven't been able to find anything substantial. Has anyone experienced this? Is there any hope for me? I'm considering GLP-1 injections as toxic as they are.