I am currently experiencing some very weird sensations which I think are tetany and which I suspect are caused by calcium intake. I am feeling very agitated (for which there is absolutely no good reason, it came on very suddenly, and is definitely not my usual self...) accompanied by a strong desire to take a deep breath, which I can't, extreme muscle hyperactivity, esp. hands and wrists, tingling and numbness in the front of the tongue and lips, a feeling of collapsing in my lower throat (I have been having trouble swallowing this evening, which has been improving over the last weeks but now seems suddenly worse). I feel a great desire to pace up and down incessantly and being still causes me to feel very unwell. This is the complete opposite of my usual state because normally I can't stand up for more than a few seconds and simply don't have the ridiculous energy that I suddenly have to move about in this way.

This happened to me once before, about ten weeks ago, following taking an aspirin. The symptoms occurred within 30 minutes of my taking it. At this time I was also taking vitamin D, and I attributed my weird symptoms as a reaction to the combination of aspirin and vitamin D. But now I have it for the second time, I find only one other denominator: I have just finished drinking a hot chocolate that is very high in calcium.

I know, if last time is anything to go by, that this extremely energetic and agitated phase will be followed by a phase of much worsened muscle weakness. My question is, is it possible calcium intake has caused these symptoms? Can anybody shed any light on this? I feel I am going crazy in this state.