started running rough and smoking on 1994 Ford Explorer

was running good right before checked dip stick had to much oil but didnt add any oil before

Asked by for the 1994 Ford Explorer
is the oil a milky color,like a choc. shake? poss blown head gasket or cracked head,have it ck"d to make sure.
thanks oil looks normal i better get it checked soon and hope for the best or not so bad