[anigbrowl]

Well it sounds like you can afford the costs of medical school so just plan out your pre-med undergraduate requirements and get on it. There's nothing remarkable about being age 22 and many people have successful career transitions at far more advanced ages. It sounds like you're fishing for arguments to justify it to someone else and there's no need for that, if you're sick of webdev then do something else. It's your life, after all.