Intresting. Your IBS symptoms could be related to the flu vaccine. The seasonal flu jabs do have mercury in them. Thermisal is still put into seasonal flu jabs by the pharma companies that manufacture them. I've never had the flu shots, but I have had amalgams/mercury filings. Mercury is known to cause gut issues like leaky gut and IBS symptoms. I would start researching the mercury connection with the vaccines that you've had as one possible avenue to investigate. I've got similar symptoms to you. I have malabsorption, leaky gut and IBS type symptoms, all thanks to mercury fillings. Good luck.