why put up with minor annoyances, if you are registered close by you can go to the doctors,get some advice have a few tests taken get some painkillers/other tablets and take them and it won't disrupt your studies or life much but can help make you feel better, if you have to rush back to where you are from everytime you get ill you will miss out on uni,seeing freinds etc, and it'll be a waste if you find out nothing was wrong at all.
registering is free, takes about 5minutes, and gets you free painkillers/iron tablets/antibiotics whatever you might need ever, without having to travel far at all.
Healthcare is not just for when you are at deaths door, its to help with those day to day little problems as well.
also medical practise GPS are more used to dealing with studnets,and the commen problems they come accross, and are, or at least in my case were, much more approachable,frindly and helpful than the GP from your local area that deals with all ages of people with very different issues.