Should I go to the doctor

Yesterday I took another pregnancy test and it came back negative. My last period was in early October. I had unprotected sex in October and November. There was one week were I was throwing up every day, then after that it was every other day or every two days. But on days I didn’t throw up, I would have extreme nausea. Also my boobs were really sore and sometimes seemed swollen. Also my back had been hurting (but mostly on days I worked). And I’ve been really gassy even though I’ve been watching what I eating and haven’t been eating gassy foods. I’ve been really tired and sometimes have to take a nap in the middle of the day. Plus I’ve been super emotional. I know all these could be PMS symptoms, but I don’t throw up before my period starts. Also my regular PMS symptoms are constant back pain and cramps, as well as a lot of discharge. After my negative test yesterday, I decided to get the idea out of my head that I could be pregnant. I figured if I stopped thinking about it the symptoms would start to go away. But yesterday I was also still dealing with a lot having to do with a couple of bad break ups (one with a guy I was seeing and the other with an ex I had been friends with) and some stress with my family. I was so emotional and so tired. I slept part of the day. And late in the evening I felt so sick that I thought I was going to throw up. Now I’m wondering if I should go to the doctor and see if something else is wrong. Or should I just wait another week or so and see if my period starts?