I suggest you look for a different chiro to check out your neck. If head forward causes headaches, that seriously suggests an upper neck issue. A NUCCA.org or atlasorthogonality.com chiro may help. I have to sleep on my back without a pillow or I develop symptoms from the head tilted forward posture.

If your headaches accompany pain at the bony part behind your ears, that strongly suggest a C-1 or C-2 cervical problem.

If the muscles spasms need to be released with massage, something is wrong and causing them. The massage is treating the symptom, not the cause.

Has the PT done any gentle traction and gentle cervical mobilizations ?