<s>[INST] I had a recent MRI/MRA test without contrast. At times, I felt like I was vibrating. (The results were no problems - normal brain.) However, I am wondering is it possible to have a sharp brief pain during this test. I sure believe I did and wonder what might have caused it.As well, I had a duplex sonogram of right carotid artery and the scanning really ran up/down on a sore spot. That test revealed 50% plus blocked external right carotid artery. Any thoughts on the pain/tenderness issues. [/INST] I don't think you should worry,  at least regarding the arteries. If there had been any other issue with the artery that sonogram is precisely the exam which would have shown it. The 50% stenosis is not alarming (especially if your age is advanced it's a frequent finding) it's the internal carotid we are more concerned with as it could be a source of stroke. Of course if the pain persists you should be checked, might be related to other structures like muscles, joints etc. It's not related to MRI though, many people suffer some anxiety issues during/after MRI it's normal with the confined space and all that noise, nothing to worry though. </s>