i sick of sex..and i dont know why...?

[Kasey]

i sick of sex it does nothing for me anymore..im 24..i got two kids..and they both have diff. fathers but after i had them i didnt want sex anymore..my first husband always said he didnt think i was interested in him anymore and i always told him that it wasnt that..i just didnt wanna have sex...well i left him and met my next bf and i had sex all the time ..a couple times a day but then i had my second child and now im in the same position again.. i dont understand what is going on..p.s. my sister is the same way..can u plz help.