Lower back pain, been feeling a weird sensation at bottom of one buttock, and down both my legs. my feet been hurting to especially. is this sciatica?

Could be: Could have a pinched nerve in the low back. If it's not settling down, see your doc.

Sciatica: Pain in the distribution as you suggested describes the pattern of the nerve that travels in the leg called the sciatic nerve. The sciatic nerve is not the cause of the pain source, it is the result of an irritated nerve typically in the lumbar spine (low back) which are caused by herniated disks, spinal stenosis or degenerative disc disease requiring further evaluation by a spine specialist.