I have been experiencing nausea (mostly in the mornings and evening but on and off all day), mild headaches (with one migraine that lasted about 10 hours), lower back aches, fatigue. I have had these symptoms for a week. There is a chance that I could be pregnant but I m not sure and I don t want to rule out any thing that could be more severe. I am 33 and I have no children. My last period was April 18, 2015 but was not normal in any way (it came 4 days early with ABSOLUTELY no symptoms and was bright red and very thin flow, lasted 3 days). I smoke about a half a pack of cigarettes per day. I work two jobs. Any suggestions are welcomed. If you need any more background please let me know. I have no health insurance so I could really use the help.