I have no medical knowledge but I cannot help wonder if your problems are caused by jaw clenching/teeth grinding in your sleep - I think its quite common for people to do this when under stress and feeling anxious. When I was going through a really stressful time, I started getting headaches, a tingling sensation in my cheek and my neck sometimes felt stiff. Then one tooth went really sensitive so I went to see the dentist - although I did have a sinus infection the tooth was ok but he thought I was subconsciously clenching my jaw in my sleep and asked if I had had headaches etc. I was given medication to help relax me at night, to break the cycle and my symptoms eased off. It might be worth talking to your GP or dentist to follow up on the jaw issue mentioned and start to learn how to reduce your anxiety

You are absolutely right. It makes complete sense. It always seems to be the case that if I go to the gym, walk and then have a sauna then my symptoms are a lot less noticeable the next morning. I wish I wasn't such a worrier. I am still worried about going to the Dr incase they say I need an mri to rule other things out. I'm going to try meditating in the evening as I am drifting off to sleep. Do you think that is a good idea?

You are absolutely right. It makes complete sense. It always seems to be the case that if I go to the gym, walk and then have a sauna then my symptoms are a lot less noticeable the next morning. I wish I wasn't such a worrier. I am still worried about going to the Dr incase they say I need an mri to rule other things out. I'm going to try meditating in the evening as I am drifting off to sleep. Do you think that is a good idea?

Meditating may well help you - really anything to help you relax. I would also start trying to incorporate daily stretches into your routine - especially for neck/shoulders as from your massage it sounds like you hold tension there. It may be worth another visit to your dentist to get further information about what was meant about 'joints of jaw' and see if sleeping with a mouthguard would help. I was given medication but my daughter it would appear also subconsciously clenches her jaw in her sleep in times of stress and she was given a mouthguard before her GCSEs to prevent damage to her teeth.

Well I had two days with no symptoms whatsoever. And then....... I had a bit of stress last night and went to bed without doing any meditation. I woke feeling ok and had a massage (from a professional masseur), afterwards I was left with tingling on top of my head and to the right side of my head. Maybe he aggravated something. 

For the last week or so I have been having a sauna and shower before bed and listening to a meditation cd while falling asleep. Most days I have woken with no symptoms but they did come back during the day. 
The last two days were really good when I had no symptoms at all. Maybe this is all caused by stress? Jaw clenching and anxiety!