Pothos Looking Limp. Roots of pothos become weak, ill, and waterlogged. Overwatered plants will often start to develop leaves that curl upward.

If the top of your plant is bald, then use the bobby pin method: (with bacterial leaf spot disease, water spots will appear with yellow halos on the leaf undersides.) root rot is caused by overly saturated soil, which can be a result of overwatering, poor drainage, or heavy soils. When roots are too moist, it is called ‘wet feet’, caused by poor drainage and too much water.

The Past Week, The Oldest Leaves On My Pothos Have Been Turning Yellow.
Keep your pothos away from the window. You may also notice brown spots or water blisters on the leaf’s foliage. Allow the soil to dry out before watering again.
They Aren’t Getting The Hydration That They Need And The Moisture Exits The Leaves.
If you accidentally let your plant’s soil dry out completely, you may see leaves go limp, droop, and possibly start to brown. Only on one vine though so i thought it couldn't have been over or under watering, also considering my watering habits: Use pins to secure long vines to the bare patches.
What Does An Overwatered Pothos Look Like?
You have to pull the plant out of its pot, trim the rotten roots off, air dry, and repot it in a new pot with fresh soil. When pothos has pythium root rot, the roots look black and mushy; The two wilty ones in the pot now are probably waterlogged, not taking up any water, especially if the soil has been watered and is moist or wet now.