I Feel Nauseous Like I'm Wasted Off Fresh Air. I'm

I feel nauseous like I'm wasted off fresh air. I'm exhausted all the time it makes me wanna sleep like all the time. I need to pee like lots, especially during night. I'm like bleeding a little but I had my period like less than 2 weeks ago? And it's only like really really light though. Im tearing up and feel like im gonna cry even more, it all put together is really painful and I don't know what to do. Is it something serious or am I just thinking too much?