Since January I have had the flu and about 4 colds. One goes and I get another a week later and my friend says it's not normal to be ill so much in such a short space of time. They are always bad colds where I end up very chesty and coughing and usually lose my voice. I usually never even get colds maybe once a year if that. Should I get checked over at docs? I had a bit of a stuffy nose but not too bad its all on my chest.