I am a 71 year old dental surgeon, still working in my own clinic. I am having blood sugar fasting 102 and pp 136. For the past six months I am taking cetapin 500 mg. Once daily in the morning. Lipid profile in the normal range for my age, bp 90/140 range. I do excercie daily. Recently I feel tired especially in the mornings and slight shivering of hands when I am writing and especially when I am putting my signature in front of others. Last when I bought a new I 20 car, i. Felt very nervous in signing the documents. Please advice me what steps I must take for my problems.