I think PFS/PSSD/PAI is GABA-A and glutamate related.
Did any one else get brain zaps (like on ssri), muscle spasm(like benzo withdrawal) and insomnia(gaba-a) when crashed/crashing? My muscle spasms were extreme when crashed on anastrazole(which lowers gaba-a) they were so strong I could not straight out my legs. Maybe GABA-A and glutamate crashed and the system upregulated so much it’s now too much for it to handle? Or maybe it’s still too low?
I’m not sure , just wondering. Let me know your thoughts.