I ve been having headaches everyday for over a month now. I think I may have a swollen lymph node of the left side of the back of my head. Only for a couple days I ve noticed when I pee it burns and was painful the other day. Today it just burns without even peeing. I ve always had really bad back pain mainly in my lower back. My last two periods have always been really adnormal. Last moth it was a week late and when it came it was really bright red blood and really heavy lasted over 5 days. This month it lasted 2-3 days and was very dark but very little bleeding the whole time. I didn t see any red which is very uncommon for me. I ve also had pains in my lower stomach as if I was on my period but I m not. Today I had a really sharp pain in my lower stomach area and had to bend over it was pretty bad. I m really wondering what this could mean? And if I should see a doctor?