long term effects of sunstroke

This is really ruining my life. Has anyone else experienced this? 30 years after experiencing heatstroke, I get debilitating symptoms from any exposure to hot sunshine, even just walking for 2 minutes in it. I get very stiff neck and shoulders and an awful feeling of nameless anxiety.
usually a good tempered person I completely lose my sense of humour and become irratible and dont want to speak, its like just being full of fear and dread. I used to be an alcoholic, but have beeen clean and sober now for 25 years, but this is so debilitating as it means I cannot go on holiday or relax with my family when at all sunny. My osteopath thinks I have damaged my meninges. I feel this is a likely diagnosis, is there anything that homeopathy can do for me, and have you ever heard of anyone suffering in this way??

I sweat very little, and the only relief I get is to spend hours in a steam room, covered in anhydrous lanolin, trying to sweat!. Its not a great way to spend my summers, and I really would SO much like to know if there is anything I can do to improve things. i feel it is getting worse every year. I drink masses of water, and live a very healthy life, and am otherwise a very active and healthy 59 year old woman. thanks for any help you can offer. I really want to be able to enjoy the summers, and go on holiday like normal people.

I would love to hear from anyone who related to this, its nothing to do with sunburn, I tan easily, and can tolerate sunbeds fine, tho I dont have many, and hot baths etc. all fine. Its just the SUN, which I used to love and now am starting to hate.

thanks if you can help!

thanks for that. well I will keep the thing up there and if anyone else in the world relates to it it would be great to hear. Yes, I hear where you are coming from but its hard to explain its not that sort of anxiety, perhaps thats even the wrong word . . .its just a physical problem I know that. anyway thannk.s