feel like crap

I have had a head cold for the last three days, but then yesterday I started spotting (af was here two weeks ago) and now I can't sleep even though I'm so tired and I feel sick to my stomach. TMI when I spot, it's barely anything there. I don't know if I'm just getting a flu or what it is, but can someone suggest something to help me feel better? I'm also ttc with irregular periods so I don't really know what part of my cycle I'm actually on.