PB was issued as a nerve agent pretreatment to nearly all US troops, as well as 45,000 participants from the United Kingdom. Use of low doses (30 mg 3x daily) of PB, taken orally upon direction of unit commanders, confers significant protection to troops when used with the other post-attack treatment measures (atropine and 2-Pam chloride). ... http://www.pdhealth.mil/deployments/gulfwar/enviro_pb.asp
The symptoms you describe refer to the side effects of PB. I am guessing the other pill(s) you may have got is described as above. I included the website but I may be wrong. Btw, thank you so much for your service.