Well, this thread is being very therapeutic for me.
I am undergoing a rough root canal. Its been 3 weeks, since my tooth broke off...and this one (I've had 2 others over the years) has really been a PAIN.

I don't know why...I guess it was dying for a while before cracking. Maybe it is the mercury that was released during the first part of the root canal? Yesterday (the day after the sealing of the canal) I had a major fatigue attack. Today is better.

Joano... I stopped the citrulline for 3 days, during this procedure and boy did I notice THAT. The effects of those amino acids are quite slow and mild for me, but not taking them, well, I sure noticed THAT. It often takes supplements a while to get going...especially when they are inserting into a
metabolic system that might be set in its ways!
So I am giving mine a good 3 months now. This is the slowest one I've done. I am going to up the arginine for a week, by one tablet 1,000mg (to a total of 2000mg). Keeping the citrulline at 1,000 and see if that helps.