6 weeks...hormones or am I losing it?

Today has been rough, and I feel alone. One minute I'm call and on the go, and the next I'm extremely sad behind a text saying "At work". I got extremely sad that the father of my child was at work. I have no idea why. I suppressed it the best I can, and didn't tell him because he would think I'm nuts. Eating lunch made me feel so much better, then the nausea hit. Once that happened the tears started flowing. I was crying because I didn't feel well; which made me feel stupid and worse. I've been on the sofa sick since then. It's too early for these extreme lows and highs right? What can I do? Meditation, deep breaths, thinking of a happy place, etc. does not work.