What Causes Severe Constipation And Irregular Periods In 15 Year Old?

hi, i am 15 years old girl. first, since the day i was born i am suffering from constipation that i can stay for weaks or a month without going to the bathroom sometimes i feel bad and sometimes i dont.nowadays i am eating fruits, vegetables, fibers, moving and trying to drink enough water sometimes it works but i feel that there is other things inside me not everything is out and sometimes it doesn't work at all and i have tried all the medecines nothing of them work but one medecine but it doesn't make everything insdie out of me and i have to talk 4 pills to go to the bathroom after8 or 9 hours!!.second, the period came to me early and before my friends and i was a heavy bleader and when it used to come the pain was unbelievable that i had to take heavy pain killer injection to realese the pain but by the end of this month i would complete one year without a period and it happend suddenly. by the way when i was younger i was suffering from menopause symtoms and the doctor told that it will be stopped suddenly and he would make it come again artificial and one year ago i made a huge diet and you should know that i am having systemic lupus and one of my doctors are telling me that my case is psychological and. please tell me what to do?!