Welcome to the board. I am sorry you are having a rough time right now. I have done IV solumedrol. It can cause a strange taste in your mouth during the infusion. You may have trouble falling asleep tonight. Many people report having mild to severe heart burn. You may have more energy while you are on the medication. You might be irritable or have mood swings. When you stop the medication, you may crash and have fatigue.
Remember that the solumdrol is really not a treatment. It is for symptom relief. You may be more comfortable but it won't lesson any residual symptoms that may remain after your flare has cooled.
Good luck and I hope you feel better soon.
Gretchen co-moderator MS board diagnosed with MS July 2006