A thin watery discharge all throughout is not a normal feature is generally due to genital herpes. At times the sores are not visible and the only thing that remains abnormal is a watery discharge. It can also be atrophic vaginitis which is common in post menopausal women and in your case heralds a hormonal imbalance. It could also be chlamydial infection or even gonorrhea. Hence it is important to get a complete STD and a complete hormonal panel (estrogen, progesterone, FSH, LH, prolactin, thyroid) done.
It could also be due to infection in the uterus, cervicitis, vaginal infection. An ultrasound via vaginal route or a uteroscope inserted via vaginal route to look at the condition of the cervix, uterus etc, a PAP smear, a vaginal swab test, a culture of the vaginal discharge, a complete STD panel are probably what are required. It could also be an allergic reaction to soaps, cosmetics, douches, razor etc that you use. Hence eliminate them one by one and see if it helps.
While sex may not affect your periods, a STD can. Also, it is important to rule out pregnancy. So, take a pregnancy test and see. It is difficult to comment beyond this at this stage. Do consult your doctor/ gynecologist. Take care!
I do not have any infections or STD's got tested I am clean there. I think that I will buy a pregnancy test tomorrow and take it to see what happens. That is my best bet right now. I feel like I am having my period but I am not. I also never get cramping while i am having my period or headaches or being really tired all of a sudden. It is very strange and eating a lot and gaining weight is really weird to. But thanks.