I am having really bad cramping in my stomach and have been prescribed Buscopan which do help but the cramping I'm getting is visible on my stomach and pulls tight just under the breast bone. Is this normal for IBS cramps to be visible like that only I thought the cramping was just internal? Thinking it may be Fibromyalgia as I know that muscle cramps are a problem with that too. I take tablets for muscle spasms where my limbs will suddenly jerk out but this is different. Any thoughts would be very welcome.