I have been experiencing the above symptoms for some time. I am 25 and do not take any medications of any kind. I have been experiencing these symptoms along with a general feeling of being unwell or not quite right. The irregular bleeding only started about 3/4 months ago. It usually occurs around the middle of my cycle and continues spotting right through for 2 weeks until i get my period. After i have had sex sometimes i experience a bleed, it can be bright red immediately after or come on a day later, kind of dark brown.I am experiencing the extreme moodiness right in the middle of the month along with the very puffy feeling which is mostly in my head/face and arms (this occurs at the onset of the irregular bleeding).
Once i get my period things return to normal again until this starts again a couple of weeks later. I have just received a negative result from my smear test and have no infections which i was also swabbed for at the time.