HI-- I have been uisng the Somnidren-GH ULTRA pill and ZMK for a while now love it!! but yesterday was strange... I went to sleep but I woke up in the middle of the night and felt like I was wired??? I final went to sleep but it took about a 40 min for me to fall back to sleep??? WTF???? I use it when I have a hard day in the gym and my body is just so sore.. But for real that was just plain crazy!!!! I got 7 hours - the 40min.. anyone every had that happen??