Re: Rectogesic ointment
have you had the headache in the past, prior to the rectogesic treatment?
Has your gp ever diagnosed you with cluster headaches? Some of your symptoms seem to match and could potentially be exacerbated by the rectogesic. May explain the clear CT and other tests too as the effects causing cluster headache are often transient and hard to pinpoint on a scan.
“It's not worth doing something unless you were doing something that someone, somewhere, would much rather you weren't doing.”
Terry Pratchett