2005 Dodge Ram does not run smoothly at slow speed misses or jerks slightly

What is your question?

After going a minute or two truck jerks when I drive real slow like you're turning the key off and on and if I hold it at seven hundred RPMs it varies from 700 to 900 back and forth It's so aggravating you can feel this slightly when i take off to around 25 mph this small jerking no noises or leaks

What makes this problem better or worse?

When it warms up seems more pronounced

How long has your 2005 Dodge Ram 1500 had this problem?

Couple of weeks