After getting oil level back up to correct levels I was driving it to work for about three days. It was driving great! I parked it for about 3 days and then took it on a short trip to drop my daughter at a Girl Scouts meeting. It was sputtering uphill. Looked at all possible reasons even though to me it feels like the fuel isn't making it to the engine, so my first thoughts were lines gone rusty, or pump in the tank that is working is headed out...could be the filter, the spark-plugs, maybe moisture in the air filter housing, throttle body might need a clean.? Anyhuuse, I got some Seafoam and poured in the suggested oz. per gallon so half a can for 8 gallons in the tank and the truck ran great for that drive. Next ride was just a short one again(2 days ago) to get dog food and it was good until on the way home it sputtered once. Today I cranked it up to take another test ride and it sputtered several times and almost cut out on me several times. When Idle it seems fine but when taking off if you don't go super slow it started to cut in and out of getting fuel, so then straight back to the house and didn't leave the neighborhood. Poured a bit more Seafoam in just taking a shot in the dark and cranked it again. Noticeable sound difference in idle and shaking quite a bit more when put in gear>reverse>drive>park. It's parked now and I don't know if I could even make it to the garage I take it to about 2 miles away. Weighing next steps. Trying to get my nephew to come help diagnose but he is busy with with a lifter went and valve slapping around in his truck.