Question

For a bout a week or so now I been feeling sickish like upset stomach feeling like I'm going to throw up that started last week and feeling really tried and been falling asleep every chance I get and it's not normal for me and head aches with all over body aches and I don't have insurance otherwise I would go to the doctor I don't think I'm pregnant it all started last month just slow now it's getting worse and my period was not like a period it was two days late and then it was on and off for 4days so my question is what does you all think it is