I have a bass that I might have played 3 times since I bought it two years ago. I put new strings on and am getting ready to set it up. The neck seems a little up-bowed and my subtle adjustments to the truss don't seem to be making any difference.

Also the intonation is way sharp, on every string. I've tried intonating but it really doesn't do anything. I think I'm just going to have to take it to a shop, but is this normal? For an instrument to do this after so long unattended, or do you think it could be a deeper problem?