Oil in coolant but no water in oil no smoke runs rough a couple blocks

What is your question?

I noticed my coolant disapering I just changed water pump and saw no visable sings my oil was burning quick too it doesn't smoke I do have oil that smell like gas in my coolant overflow no oil in water the other day it started running really rough when u first start it and when u first drive it u can hear small popping from exshaust after a couple blocks it runs fine when u stop its miss firing like it needs a simple tune up idle goes up and down the rpm runs very high and takes forever to shift itself I noticed yesterday as I was warming her up an oil ring on floor under rear tail pipe what's wrong? How long does my baby have