I think it really depends on where you're getting the tattoo. The skin around your navel is most likely a lot more sensitive compared to on your shoulder, so it'll probably hurt more. If you've been thinking about this for a while - just go for it! Even if it hurts, it can only hurt for so long then the pain will be gone. Like when you get a needle, it hurts for the first couple seconds, then you're pain free and you go on with your day. Btw, make sure the person doing your tattoo has STERILE working tools. Please look some more of this stuff online and talk to the person who will be doing your tattoo about the procedure/after care before you get anything done. D: