Spike proteins seem to have an affinity for the ovaries/testes (actually the same body parts but differentiated according to XX/XY)
So, the spike proteins are there, is it crazy to wonder about a disruption of the menstrual cycle? menstruation is the end of a choreographed dance of hormonal signals that are easily interfered with.
Interestingly, it takes constant effort for the body to keep the ovaries from becoming male ..if you were to inhibit the action of a single gene they would turn into testes.
Maybe too much information, sorry, I tend to babble on...
Read where a post menopausal woman 57 years old, started having bleeding
The endocrine system in a female is very complicated. I have something bizarre going on and the first Dr is a complete idiot..doesnt know how to deal with it. Some Diabetes endochronolgy doctors dont know all about the entire system. Finally got to a surgeon who agreed to order an MRI.