If you see someone asking for donations, especially when they claim that it's medical-related, for your own sake it is best to treat it with a healthy dose of skepticism. Exceptions of course being if you know the person IRL and are aware of their problems or if their medical troubles are backed by a legitimate fundraiser.

I've been seeing one journal in particular being publicized recently and this person has claimed to have had various health-related troubles for several years and has account-hopped frequently during this period. Be careful of where you choose to donate your money because not everyone is sincere and there are a bad few out there who wish to take advantage of this community's trusting and generous nature.