Im Not Sure What Is Wrong With Me I Finished

Im not sure what is wrong with me i finished taking chlomid 2 months ago trying for a baby and this month i have been on period for 2 weeks still on now and i keep having really heavy bleeds from it also i keep getting nausea, bachache, insomnia, loss of appetite, bad mood swings and burst out crying alot feeling really down wondered what it all is?