I had a hangover 4 days ago & I've been feelin sleepy, fatigue, lightheaded queasy is this normal?

Usually, the normal hangover time is 3 days. But, this depends on how much you drank, how dehydrated you became, your gender, how much you have eaten, and your nutritional status. Right now, it is normal. But, I do recommend speaking to your doctor about these problems, if you are feeling very ill.