Dull ache in kidney

I have posted before but am going to repost this question. I am 22 years old and have had a dull ache sort of pressure like in my right kidney and abdomen for about a week and a half its not really painful just a bit annoying sometimes. Im also agoraphobic so am avoiding doctors at all costs, I have no idea what it is but its also giving me a sort of cramp in the top of my leg as well does anyone have any ideas? I realise I need medical help but some ideas would ease my mind a little