Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Low pulse with dizziness always to be taken seriously. If you d just tell us your age, any cardiac disease you have, or any drug you are taking, then it will be easy to diagnose. There are so many causes of low pulse, like drugs that slow the heart, heart problem and hypothyroidism. It s always important to take it seriously, especially while having dizziness. The treatment would depend on the cause. So I would advise you to talk to your doctor in this regard. He wold take your history, examine your pulse and heart rates. You may need some investigations, like ecg, echocardiography to know the exact cause for the problem. Hope I have answered your query. Let me know if I can assist you further.