ive used b12 in the past, but just to cut my test prop...
lately ive been sick and really tired, so i just started 500mcg yesterday.. i feel like im always going to fall asleep during the day but i cant go to sleep because i have way too much stuff to do.. (ive been like this for like 3 days now)
does anyone knowhow long it will take for it to give me some benefits like more energy, increased appetite, etc