Can i have androgenetic alopecia in mid-20s even if my blood work is normal, eat healthy diet, exercise, etc. and no family history?

Not if you're female: Your notes show you as a 26 year old female. Diet has no bearing here. If you're having normal periods and don't have hair where usually only men have it, then I'd be very surprised if your hair loss is androgen-type. If you're actually a man, of course you can start having baldness in your 20's especially if you're naturally blessed with a lot of body hair. Your Dr. can discuss treatment.