We really need pictures, and we need to know where you are, what the weather's like and is the plant indoors or out? It surely could be outdoors now.
Desperate times call for desperate measures. First thing I would try is soaking it for a couple of hours in a bowl or bucket of warm-ish water. It sounds like the root ball isn't getting moist enough to support the new growth. These plants like lots of water as long as they have good drainage. If the root ball got seriously dried out at any time it can be hard to re-hydrate the soil, and water you pour into the pot will just run through, not be absorbed.
IF you're worried about root rot, first slip it out of the pot and sniff. If it smells nice, and earthy, just slip it back in. If there is a funky, moldy or rotted smell, taking action about that is a good idea. I'd try first a douse with very diluted hydrogen peroxide - get it at the drugstore or grocery store, and dilute 32:1 with water, then douse the whole root ball.
My last resort is banishment - I put the plant out in my jungle, and leave it to its own devices. About half the time I come back in a month and the plant has jumped up and is (figuratively speaking) sticking its tongue out at me.
