Coming to the UK to study means you have a lot to think about. There may be some big differences in how healthcare works here compared to your home country. Before you arrive you should find out if you will be entitled to free healthcare and then register with a doctor as soon as you arrive. There are a lot of people who can help you understand what to do if you have a problem and many people to help support you if you are struggling to adjust to life here.
The How-to Guide may provide you with useful information.