My dad had similar symptoms about a year ago and three sessions of lasering arteries and several new type stents later together with a drastically improved drug regime and he's in a much much much better place. So much so that the last time he came to the Albion he positively bounced up the...
My dad had his reverse Alien chest burster taken car of at London Bridge and they did such a thorough good job 22 years ago that when ,as can be inevitable, he had a minor blip/re-occurrence recently they couldn't work out what the chap had done to his plumbing! (All sorted now.)
Def check out...