What is the relationship between bacteria and epilepsy?.0

I had a reoccurrence of epilepsy in 1995 after being seizure free after 1962.  That is, after 1962 the seizures went away!  I suffered a right side brain injury when I was two years old.  (I was born in 1951.)  Prior to 1962 I would have grand mal seizures and the seizures were controlled by Phenobarbital.  The seizures came back in 1995 and I would suffer both grand mal and partial-complex seizures.  The seizures were not able to be controlled with medications.  In 2009 I had an operation that removed my right hippocampus.  Since that time I have had five grand mal seizures but no partial-complex seizures.  The seizures are not being controlled by Lamictal and Trileptal.  I keep a journal specific to my seizures and I write down relevant experiences prior to and after each seizure.  In one episode I had a seizure after taking the Tami Flu shot.  I understand that when you get the Tami Flu shot you are injected with live flu virus.  Is this true?  Is it also bacteria to some people?  In other seizure episodes I had seizures after taking OTC meds for cold & flu symptoms.  For the longest time I have suffered from major sinus drip where I have to blow my nose and clear my throat in order to get rid of the mucus and congestion.  It seems that some foods that I eat just make my sinus problem worse.  I currently use the Neti Pot and I drink Apple Cider Vinegar.  After some of my seizures (post operation) I came to consciousness begging the paramedics to give me tissues to blow my nose and rid my throat of congestion and mucus.  I experienced my last grand mal seizure ten days ago while walking around the city of Dominica when the temperature was well over 90 deg. F.  About 20 minutes prior to the seizure I drank a bottle of water sold to me by a street vendor who retrieved the bottle from a dirty ice water chest!  My question is this:  could a bacterial infection (such as a sinus infection) or consumption of any food or drink containing bacteria cause me to have seizures?  In my case, I believe this to be true.  Please help me to understand all of this.