My husband is 48 with no long term health issues we are aware of. About a week ago he started to have cold symptoms & has been taking over the counter medicine - nothing new. Late Friday night about 11PM he started to have pain in his stomach. About 1:30 AM Sunday he got sick to his stomach & had diahrea. When he went to stand up lightheaded & fell. He then had a seizer type reaction. He had another around 6AM. Is very weak. No fever.