Question: I had a thalamic stroke secondary to a clot formed by untreated atrial fibrillation, resulting in right sided weakness 3 years ago. However, I was walking well and didn't have many residual symptoms for about 5 months. Then I began to have difficulties, so was using a walker for balance and safety. A second MRI showed no changes from the original MRI taken soon after the initial stroke. However, no other symptoms until about 4 months ago, when I began to have fogginess in thinking, extreme fatigue, poor balance, & nausea so that I could not do my routine PT exercises and must lie down in order to reduce the symptoms. I also began to have progressive neuropathy of right extremities. Neurologists could not explain. Audiology exam was negative. I continue to have periodic a-fib, and take Tikosyn bid, plus eliquis. I have a Pacemaker. The ultrasound results are O.K. and my cardiologist doesn't think a cardiac condition is related to symptoms. Could my symptoms be related to vagus nerve issues....pituitary? Test of adrenal gland (cortisol production) was normal. I have type II Diabetes, under control. Medications other than those named: Metformin bid, thyroid 50 mcg. qd, Diltiazem 60 mg. bid.