pain in the neck becomes a real headache

there's a lot I'd like to write about, but it's recently become a real pain in the neck (literally) to spend more time in front of the pc than i already do at work daily. it can become a real headache (literally) too. it sometimes feels like someone's pinching down on a nerve or artery or something on the left side of my neck.

my suspicion is that it started after an entire day of long bus rides in nz (compounded by several previous days of rides and flights, yikes)... my neck/shoulders felt so cramped up that night, we had pizza for dinner in our room (kudos to understanding colin). but it really worsened the moment i got back to work -- the pain gradually builds up in intensity over the work day, making it practically impossible to focus (i've taken to taking more toilet breaks), only to dissipate after work, leaving a lingering stiffness. then when i get home and try to use the pc, the pain kinda starts building up again.

so i guess it doesn't take a genius to figure out it probably has something to do with computer use and posture. i've tried adjusting my postures, but i think it just makes me appear strangely squirmy in my chair at desk more than it helps alleviate the pain at all. google advice hasn't been particularly helpful either; with one contradicting the other, i don't know which to take.

so, aside from my frail (or fail) attempts at doing more stretching to ease the pain, should i visit (1) a masseuse (i already have; she kneaded the knots in my shoulder but couldn't do much for the neck); (2) a doctor; (3) a physiotherapist; (4) a chiropractor; (5) a bomoh, or (6) a lawyer to settle my will?

night, typing from lex.