Pressure in left temple?

I’m not really trying to get medical advice or anything but I’m wondering if anyone else has the same thing.

So last night I started to get this weird pressure feeling in my left temple. It didn’t hurt or anything, but it felt like kind of a rubber band and then I started to have a migraine on that side of my head. It went away a couple hours later and today it was gone and then now I’m having it again. That I started feeling that pressure after I got off of my computer. It’s really weird I’ve never felt it before. I never get migraines but lately I have been. My sleep schedule is also awful. I go to bed at 3am and wake up at like 9 or 10am because my kids haven’t been wanting to go to bed. Once I lay down I notice the pressure goes away but if I sit up or stand up the pressure in my temple will come back. Now I’m only having the pressure but not the migraine.