Why is my 01 ram 1500 5.9 shifting weird?

What is your question?

When I was driving I was going 45mph and I gave it more throttle. it seemed like it shifted up then it seemed like it shifted right down because the rpms went all the way up and lagged out. It felt like when u trun your over drive off and you floor it it lags it felt like that. Fluids are all good. I drove off to go back home everything shifted fine all the way to 70 then something smelled like it was burning

What makes this problem better or worse?

When hot

How long has your 2001 Dodge Ram 1500 had this problem?

Just happened