Waaaaaay off topic, but peopel are trying to help you as best they can.
I'm a big believer in people making informed choices about the risks of extreme sports. I don't care how PADI markets it, diving is an extreme sport. Therefore, I second the notion of taking about your body with your doctor.
I would also suggest you pay a lot of attention to the whole science of decompression. Most computers, tables, and forumulae for diving are based on people with a different physique than you have. Custom software can help you customize your own dives to your own physique. I personally would suggest you bone up on all the geeky talk about tissue compartments and gas exchange and become an expert in how things might be different for you than for whatever "ideal" diver was used to cut the tables you get from a standard agency.
That research may seem daunting, but it will provide you with the knowledge to make your own informed decision about what kinds of diving are right for you. I am not implying that diving is a good choice for you or a bad choice. I am simply suggesting that you make that choice with your eyes wide open.
FWIW, there is a forum right here on ScubaBoard dedicated to answering questions abut decompression. You may think "I do no-deco dives," but that is not true, all dives are deco dives, it's just that for some dives, rising at a certain ascent rate is sufficient decompression and you don't need to stop in certain places. Or for some dives, the risk of not decompresssing is considered acceptably low.
So, do not be intimidated by the word "decompression." Ask a few questions on SB, read some books, buy some software, "immerse" yourself in the subject of decompression and human physiology, then you will be able to decide whether and how to dive based on facts.
Good luck!!!