I had the same symptoms after a weekend of partying. Heart was racing out of my chest, blood pressure off the charts and numbness in my fingers. I tried giving it a day, but no change. I ended up going to the ER ... diagnosis ... something called Holiday Heart. Essentially tying one on too much and not hydrating enough. After being on an IV for awhile, things got back under control. However, the EKG revealed that I now have an irregular heartbeat most likely caused by this. Untreated this could lead to a stroke. I'm now on meds to keep my heartbeat they way it should be. I'm only 5 years older than keith and this happened a year ago.
CNN Article
Moral of the story ... have a glass of water after every 5 beers or so. And if you experienced these symptoms, it probably wouldn't be a bad idea to have an EKG at your next physical.
Ciao