I hit the right side of my head hard on a wall 3 days ago, got a lump after a few hours on the temple, with neck, head, even cheekbone pain. i haven't had any concussion symptoms like nausea/dizziness. is this normal or should i get checked out?

You should definitely get it checked out, subtle signs can be missed and you could be delaying necessary treatment which will prevent you from harm. Sometimes you just have to bite the bullet and seek proper medical advice. Best wishes!

Please seek a medical evaluation. What you may consider not "concussion symptoms" may be interpreted differently by a Physician. There may also be damage other than concussion, such as fracture, muscle damage, etc. Check your occlusion (bite). If it feels off, also see your dentist ASAP.