I have been feeling very tired and moody for the past few weeks, I have had a blocked and runny nose for a month or so and my skin sometimes feels sensitive to touch. I last had my period 2 weeks ago however u am on the implant contraception it runs out this October, so my periods range from 3 days to 3 weeks and are always very light and they sometimes stop for a day or two and start again. I have a well balanced diet but don't exercise as often as I should. I'm on no medication and I am 25 years old please can you advise anything?