When a large number of medicines are taken, it is very difficult to determine whether a symptom is due to disease or drugs. Drugs not only act with other each other (interactions) but also have side effects. I notice that you are taking four drugs for diabetes (insulin, acarbose, metformin and gliclazide), four for asthma (Seroflo - two ingredients, Tiova and Deriphylline) and two for high blood pressure (losartan and Natrilix). There is no mention of therapy for hypothyroidism. In rare cases it is necessary to take so many medicines. For example, Seroflo contains two medicines: salmeterol and fluticasone (a steroid). Salmeterol and Deriphylline can cause tremors but one cannot be sure. Librium (chlordiazepoxide) is meant for very short term use for anxiety, not for tremors. It has a large number of side effects including drowsiness and unsteadiness, particularly in elderly. I think you should consult a good physician (internal medicine) to review your medication and see if the number of medicines can be reduced. It is not a good idea to further increase the number of drugs.