My friends mum has cancer (idk what type) and my friend then tried to OD on some tablets but someone caught her and she was saying she was never going to take them. She also try’s to self harm and tells lots of people. The other day she told me and her cousin and her cousin was devastate as I was - but I had a friend before that lied about cancer and now idk if I should believe her because she has lied in the past just to gain attention I don’t want to think like that but I don’t want to be gullible and idk what to do...