I have had a bit of a cold for a few weeks after having two bad colds in quick succession. I had anti biotics to clear the last cough and cold up. I feel tired still all the time even though I sleep well at night, my head hurts occasionally. Sometimes when I am walking I go dizzy for a split second this happens on average twice a day. I'm always thirsty and drink as much as I can but it never seems to quench my thirst. I generally feel unwell and run down. I also urinate more than I usually do over the last month