Is it normal to have light bleeding(clear stretchy discharge with blood and strands of red tissue) between two periods along with PMS symptoms like lower backache, leg ache, mild uterine cramps. Periods are due in 2 weeks. Last month the prolactin was moderately high at 50. TSH is normal, pregnancy test was negative, got little heavier periods last month after meprate cpurse as they were missed a month before. Is there a need to worry? Is it due to change in lifestyle recently to healthy diet and rigorous exercise? Please help.