Crosslinking from the MCAS thread,
https://poiscenter.com/forums/index.php?topic=2301.msg35429#msg35429 :
Mallory:
"I am so glad to have found this... .trust me you are not the only woman with this problem! I am 27 and have been experiencing the very same problem for the last few years. During and immediately after orgasm, from intercourse or masturbation, I get body and joint aches, neck stiffness, throbbing headache and nausea. This also happens when I perform oral sex on my husband, that does not result in an orgasm on my end. It's the worst for several hours but the flu like symptoms will last for days. I have been gluten and dairy free for 4 years now, so it isn't allergies. I have recently been diagnosed with fibromyalgia and a tentative MS dx, but still need a spinal tap. Do you have any other illness, nerve pain, or odd symptoms..... do you get the same feeling with intense exercise? I exercise frequently but get a similar headache only when I go running for some reason.. minus the flu symptoms though. I have a normal body weight and BMI, and have normal blood pressure and blood work. My doc has be taking 400 mg of riboflavin daily, which is apparently for migraines, although I never really get headaches at any other time"
Oral sex: Non-IgE mediated activation of mucosal mast cells?
Fibromyalgia: Often comorbid with MCAD
Multisystem symptoms and odd symptoms induced by triggers: Typical MCAD
Exercise: potential mast cell trigger
Many women have CFS on the TNS forum which is also often seen comorbid with MCAD.
I wonder if desensitization with diluted ejaculate from men works for her case.
Edit: Btw about CGRP and headaches from the previous posts and this one. Atopic dermatitis:
"In conclusion, SP and CGRP but not VIP fibres were more frequent in lesional than in nonlesional papillary dermis of both AD and NE. Since mast cells are also increased in number in lesions of AD and NE, they are able to maintain neurogenic inflammation through activation by SP and CGRP. The increased SP/CGRP nerves in the epidermis of AD and NE lesions may stimulate keratinocytes to release cytokines which affect various cell types enhancing inflammation."Mast cells, nerves and neuropeptides in atopic dermatitis and nummular eczemaEdit 2: Substance P can induce nausea.
https://en.wikipedia.org/wiki/Substance_P"SP is a trigger for nausea and emesis"
Conclusion: We could be dealing with the neuropeptides SP and CGRP (or increased SP/CGRP nerves) , both are mast cell triggers. In addition SP is a MC mediator and MC autocrine trigger.