I developed some psychosis symptoms during my exposure to organophosphates, which is not an unusual occurrence when the exposure is significant. I suddenly felt completely detached form normality, and this lasted a good 6 to 12 months. Mentally I was living on another planet during that time. It was a horrendous period for me.
During this time, I was unable to produce any seminal fluid. This complete dried up. Malathion is known to cause testicular toxicity and affect spermatogenesis:
Malathion-induced testicular toxicity is associated with spermatogenic apoptosis and alterations in testicular enzymes and hormone levels in male Wistar rats
At the time I had no idea of why this was happening to me, but I had a hunch it was due to a toxic exposure of some sort. It was only a year later that I discovered, through questioning people in the house, that a large amount of organophosphates has been spilt indoors and not properly cleaned up.
I spoke to one of the UK's experts in organophosphate poisoning, Elizabeth Sigmund, who worked tirelessly to bring to light the dangers of organophosphates, in spite of the pesticide industry downplaying these dangers. She told me that people with significant organophosphate exposures like mine fell into to categories: those that slowly got better over the years, and those that slowly got even worse, even after the organophosphate exposure was over.
Then just as I was starting to recover from that organophosphate poisoning episode, I caught a nasty respiratory virus; that was perhaps too much for my system, and ME/CFS soon ensued.
By the way, you don't need to worry about organophosphate residues in food, because I read these are generally negligible, and of no real concern. You need to be directly poisoned with organophosphates to start getting these severe symptoms.
Apparently if we stopped using pesticides, we would lose around 30% of our crops to insects. So there is a good case for pesticides. But clearly we need safer ones.
Neonicotinoids pesticides were developed in the 1990s to replace organophosphates, due to the latter's toxicity to humans. However, unfortunately these neonicotinoids have been associated with honey bee colony collapse disorder, and also ill effects on birds, and so some types of neonicotinoid pesticides have been banned in Europe.