I've taken creatine intermittently in the past without it resulting in any noticeable increase in blood pressure. About two months ago, after an extended hiatus from lifting or exercise in general, I decided it was time to get back in to lifting and working out. I had a few jugs of creatine left over from my earlier days so I decided to start taking it with my pre-workout shake. Also at this time, I stopped my heavy intake of coffee (6-7 cups a day) and refrained from drinking any substances that had high caffeine contact. Immediately after quitting the coffee my blood pressure shot through the roof (this occured the evening after I stopped use). It was so bad, in fact, I couldn't even sleep because I could feel and hear my pulse throbbing in my head and it freaked me the fuck out. In my panic I researched my problem online and discovered that caffeine serves to regulate blood pressure and a withdrawal symptom of sudden stoppage of use is a blood pressure spike. I drank a mild cup of coffee and took some aspirin as suggested, the problem went away, and I slept like a baby. Since then, I've cut my coffee consumption back to a cup a day and for awhile I thought I had the problem solved. Over the last few weeks however, the pounding pulse in my dome has been resurging, and a few days ago it was worse than it has ever been before. I had a doctor appointment that day and for the first time in all of my visists they told me to keep an eye on it. I did a search on creatine because I knew that it caused your body to retain fluids. Sure enough, I found several sites claiming it has indeed been linked to a rise in blood pressure in certain individuals (though I also found some that said no link had been found at all). I ceased creatine intake and have since been symptom free. So my question is this: Were the blood pressure spikes caused by the creatine intake, the coffee, a mix of both, or was it neither and my problem is something else entirely?