gaining weight.. again

i’ve struggled to gain weight my entire life and was 110lbs before i started weight training and a general fitness routine. i was able to get up to 178lbs in 2019 and i LOVED the way i looked. shortly after that, i injured my back during a mission and i haven’t been able to go to the gym in a year. (i tried starting to go again in may and ended up tearing two discs). a few of my coworkers commented on my weight loss and i realized i’m back down to 110lbs. i want to get up to at least 160lbs but i have no idea where to start besides eating my heart out and the minimum exercises i’m allowed to do. i’m hoping with this app i can possibly find some tips and tricks to gaining weight and maintaining it even with a disability. i wish everyone luck on their journeys!
(also, where are all my other disabled veterans at?!?!)