Is asthma a comorbidity? Would I qualify for gastric sleeve? BMI 40.2-39 depending on good or bad day

biggest problem is my asthma there are times I am talking and run out of breath(scary). I take my nebulizer to sleep well. Also can never have a good night sleep when i sleep on my back i feel so much pressure on my chest and when i sleep on my stomach i wake up with extreme lower back pain. With being a nurse it is hard for me to take off from work the most I can try to get off is 9-10 days at most would that be enough time to recover knowing if I do return I can not lift for 6-8 weeks??