My neuro has been trying to diagnose me. I have been 2 years waiting for dx. 1 brain lesion, cerebellar atrophy, atrophy in two place in my cerebrum and halo on lateral ventricle. Every night for 2 years now I wake up sometimes several times a night with tight, squeezing chest pain, sometimes as low as below my bellybutton. I think this is the MS hug but it only happens when I sleep. I've had full cardiac workup and no problem was found except PVCs, PACs and left ventricular ectopic beat which doesn't explain these nocturnal pains. At first it woke me up every hour or so. Now only 2 or 3 times a night. Has anyone else experienced the MS Hug only while sleeping?