HELP!! My adenium has lost all its leaves. At first the new leaves were coming wavy....then they all turned brown. I had them in direct Arizona sun and I thought they were sunburned. Then I think I over watered it. It's been over a week since I watered and the moisture meter still indicates wet. The caudex is firm. Will the leaves grow back? Do I need to cut the branches to encourage new growth? This is my first adenium so I don't have much experience.