I have suffered from depression for a long time and although I have stopped short of suicide, I have always told myself I would not seek treatment for any fatal illness I might contract. Just recently I have been suffering from severe postural headaches, especially when I am physically active. I have also been getting some kind of spasm attack, like a fit, whilst asleep which wakes me up, these have been increasing in frequency and getting worse. These symptoms are consistent with a brain tumour. Last week I discovered what is almost certainly a melanoma and this along with other less obvious symptoms has convinced me that I may have secondary tumours from an unknown primary tumour. Obviously I want to know whether this is the case since I need to make preparations if I am right. However I am concerned that because of my history of clinical depression, doctors may be able to force treatment upon me if I am diagnosed with something treatable. So the question is, can a doctor use the MHA to force me to receive treatment for a fatal condition I did not instigate? (I live in the UK).