I have had 3 Remicade infusions. My first infusion I started getting a bad headache so they stopped the infusion and gave me some steriods thru my IV and started it up again. When I got home I had a bad headache. 2nd one I started taking the pre meds. Thats when the stomach cramps, headache and running to the bathroom started also a sore throat. 3rd infusion the stomaches and going to the bathroom was so bad because they had upped my dosage to 65%. Needless to say I had to stop it. I had no relief from it until my 3rd infusion (only a small amount of relief) but was getting the side effects and had to stop...
Everyone is different. Tell your Doctor what is going on and see what he thinks. Mine decided to put me on Embrel. Good Luck!