Had not thought of that. I live in a new home with my daughter who attends school, but she has no complaints.
A storm ripped up roofs, downed trees etc. It pushed her huge Gorilla play area into the fence. I tried to lift and move it, my upper back felt spine compression, I used my legs to scoot it back. I then went to ER days later and got muscle relaxers, things were locked up but since calmed down.
"Brachioradial pruritus is a neurogenic itch syndrome of the upper extremities. It is typically localized to the skin on the dorsolateral forearm overlying the proximal head of the brachioradialis muscle, but involvement of the upper arms and shoulders is also common.[1, 2] It may be unilateral or bilateral. Scratching reportedly only makes the discomfort worse, and most patients discover that application of cold packs is often the only therapy that provides symptomatic relief."
During spring/summer I wore sleeveless t-shirts but have not been out recently. The sun theory for cause has flaws as does the nerve/spine theory.
I think in my case the t-shirt is coincidental and the cause is the tightness of C-5/C-6, going to continue stretching and cool it with the weights for a while.
"Neuropathic Brachioradial Pruritus Caused by Cervical Disc Herniation: The Case"
I guess my fear this was from 'bad' liqidex or allergic reaction to sesame oil are not confirmed as nobody here recognizes these symptoms. I think low E2 can make skin itchy, at least for women.
So I will assume it is not related to hormones and maybe do some hot-yoga. 110 degree stretching for 90 minutes. OTOH heat makes it worse, warm up with cardio and stretch long multiple times per day.