A subarachnoid haemorrhage is a type of stroke caused by bleeding in and around the brain.
More information on Subarachnoid Haemorrhage is available here.
\\ An aneurysm is a bulge in a blood vessel caused by a weakness in the blood vessel wall, usually where it branches.
More information on Aneurysm is available here.
A migraine is usually a moderate or severe headache felt as a throbbing pain on one side of the head.
More information on Migraine is available here.
Important: If you have these symptoms, they may be unrelated to any of these conditions listed. If you are concerned about your symptoms then you should see a doctor.