My hasn't cried in years, until a few days ago. He says that his tears gave him sharp pains in his forehead, does anyone know why?

Whether or not the pain caused the tears or vice-versa, this doesn’t sound like something worth second-guessing. If you are able to, take him to a doctor asap…could be very serious emergency if it is neurological in nature…could also be psychological (depression, anxiety, other)...don’t delay.

He was probably really stressed out, or he had to much going on in his head, causing a headache from to much stress. Also when I cried because my Grandma passed away a while back, and I was so sad I was crying like never before. It caused really heavy “heartbeats” in my head giving me the most painful pulse ever.

maybe the pain came from trying to hold back the tears.