8 month old fell

Krystal
I feel so bad so please don't comment and make me feel worse . I turned for like 5 seconds to pick something up off the floor and I just heard a thump sound and he was on the floor crying . He was on his side when I picked him up . He has no bumps on his head and only cried for 1 min. Should I take him the the ER he has an doctors appointment tommorow at 2pm. I feel like the worse mom I've always tried to protect him and make sure he didn't fall ..