Hello, Thanks for writing to Health Care magic, I am Dr , Muhammad Ahmad , I have read your question closely, I understand your concern and will be helping you with your health related problem. The condition you might be having or getting concerned about is called PAD (peripheral arterial disease). This is quite common in patients which heart issues specially those who have atherosclerosis(narrowing of arteries due to fat deposits) as predisposing factor. If you can not feel your pulse then PAD is the top most diagnosis among the list of differentials. Your physician will have to examine you in detail and if he finds cold right hand with absent or weak pulse he might get an arterial doppler and later arterial angiography to see what the reason is and where the blockage is. Here i would suggest you not to panic, this problem has treatments ranging for meds to stenting and surgery depending upon severity of the problem. Taking extra aspirin won t help much. Nitro spray is expected to help you though if you actually have PAD. Next most important step is to visit you doctor and discuss in detail about the problem. I hope this answered your question, If you have more queries I am happy to answer you. Regards. Dr.Muhammad Ahmad