Considering Glock 19 and AIWB. Will I wish I had a smaller gun?

If this setup is uncomfortable sitting, driving, etc., then I won't want to wear it. I'm 6'2", 185, no real beer belly, but I don't want to feel like I'm getting jabbed in the gut while seated. Thoughts? PS. Newbie here, so ELI5 is welcome. via /r/CCW https://ift.tt/2YRPKkG