My girlfriend of 7 moths just broke up with me...need help !?

Well we are both in our 20's and for the whole 7 months everything was really good, we talked everyday and made time to see each other as regular as we could, 5 months into the relationship she told me she loved me and i told her the same. Nothing was wrong. We were going in the right direction, and then all of a sudden i picked her up from work and she was very distant, almost gly eyed and hypnotized acting. She said she was tired and wanted to go home and go to bed but five min later she forgot that she said that and asked what i wanted to do. This frightened me because its not like her at all. So after a long car ride home of almost no contact i drop her off and get home and she has basically broken up with me over facebook and said some really hurtful things to me. That was three weeks ago and i have had zero contact with her since. I do have a suspicion that she has Bi Polar Disorder. I know her mom has it. She has also said that she has ADHD (but never been diagnosed) she has never really been loved in her life but i truly believe that she loves me. My question is this If she does have ADHD or Bi Polar disorder what do i do from here? I am broken i myself have Depression Issues, i would just like to talk to her and see if she is ok. Everyone has told me to give it time, however she is so shut down emotionally right now that i fear for her safety and overall health. Any serious answers are welcomed. Please dont respond if you wanna be funny this is my life. ( and yes i know im posting this on a public forum but please give me respect)