I'm scared...

It is currently 12:30 at night and I am on my phone in my bed. I can hear my mom almost crying yelling through her phone with my dad pleading with her, too.

They are on the phone with my grandma.

Today I went to the local fair with my grandma and grandpa and afterward went to their house. Lately my grandpa has been forgetful and dizzy. Today was more so, though. He was distant and almost tripped a total of 14 times as we were walking around the fair grounds. My mom is a nurse and has helped my grandparents through their health problems before. My grandpa is prone to excessive bleeding and is on a blood thinner. I hear my Mom yelling, "(my grandma's name) just call 911! He's hurt badly!" From some more dialogue I figured out that grandpa had just fallen badly and was bleeding bad. I can hear my grandma sobbing through the phone, "The medical people are here!" I hear mens voices in the background of the phone call. My dad says, "Stay on the phone, Mom."

I am afraid my grandpa will be dead in the morning.

I'll update in the comments once I hear back.