I lived in Ann Arbor so may or not have been exposed to a cyano bloom. Also in VA where I think there are cyano blooms in Potomac River and seen alot of green scum on ponds.... its everywhere there. So maybe cyano is at play here.. I dont know. What I do know is that there was stachy in my bathroom next to where I sleep and I ahve the multisuseptable HLA type as per shoemaker. I had some of these symptoms... forgetting my childrens names, going completely blank.. think thats called a white out? going close to catatonic at times and into a deep suicidal like depression very quickly. Very intense. All at home. I didn end up in ER with labored breathing and chest pain that had gone on for days. I began to make notes by my bedside to write down my childrens names just in case.. and to write down the meds I took before bed because I would wake up in a panic thinking I had not taken them and it was not a huge deal if I had not.So I dont know this is cyano or not but I also see where you are coming from with the environmental element and it happening so quickly. Those symptoms though may not be only due to cyano. I think you are right that biotoxins may be a huge factor for some of us and makes sense that something environmental can take people out like that.. starting the cascade. When my brain becomes inflammed, whatever the cause (thinking metals moving lately) I can drop deep into depression, lose my ability to think, memory would drop off a cliff.. but this is temporary.. my brain calms down. The memory issues I had.. forgetting my childrens names cold.. thinking to no avail to remember them.. passed though happened several times. Brain inflammed I bet everytime. Always starting with sinuses.