Anyone else dealing with arachnoiditis symptoms?

Not only do I have joint hypermobility syndrome/Ehlers Danlos, foot peripheral neuropathy (non-diabetic), osteoporosis, fibromyalgia, and more.

I have "chronic intractable failed neck pain syndrome complicated by a migraine disorder" from Johns Hopkins after I had a herniated disc and had cervical fusion with my hip bone and titanium bolts and screws 5-29-92.

Has anyone heard of or have arachnoiditis? I have an email relationship (and have for probably 10 years and before telehealth was a "thing" he told me I had arachnoiditis. I get information from him all the time regarding it. He just sent this one and it makes perfect sense and fits me to a "t".

Laurie