Thank to everyone for the replies so far.

I think it's safe to say it's not uveitis for me as the headaches have been a regular part of my life for years, I recall my doctor saying "you'll know if you have uveitis" and the replies here suggest it hurts like hell and I think that's what my doctor was suggesting. My headaches are dull, definitely not migraine in nature and last a few hours to a day at most and don't cause too much distress, but nice to know why sometimes, so thought AS might be a possible cause for me.

John, NSAIDS are not my first choice and my first preference would be biologics. But II may not qualify until it gets worse, so I've been left on NSAIDS. This blows me away! Whilst the NSAIDS have improved my life, it could be better. I can sleep again, which is great but I do have painful SI joints almost daily, as well as shoulder and spine pain. Like I've said before, I can endure the pain, but less, or none would be better. I've spoken to a few people on biologics and been told they are amazing.

Thanks again for the replies, it's a good site and great to get some info from others in the same situation. Whilst I appreciate the work Doctors do, they don't experience the pain personally.