well, they aren't getting something they need or getting too much of something....I know... 
first thing I would say is what has changed in the last three weeks?...you said you were watering more often which makes me think they are staying too wet...I assume you are growing in containers....if you can get to the bottom of the containers, stick your finger in one of the holes and see how wet it is....your soil can be bone dry on the top and sopping wet on the bottom...
I am. These containers are well ventilated, they are Air Pot knockoffs. When I lift the pot when it's dry, it's seriously like half as light! The top is bone dry, and I can't dig more than a centimeter down, because the entire soil is colonized by roots! I doubt it's only the top, because when I let the soil dry, the entire plant droops as if it were nearly dead! One thing I've done recently is that I've opened the top vent, to cool the room and to lower the humidity. Could this be the reason why? Does the humidity have to be high in order to sustain growth/flowering?
And thing is, my Bhut Jolokia has been dropping flowers too, but the leaves are just fine! It's also producing new flowers, as opposed to the TS pictured here. I'm wondering if it's my high pH tap water that's causing this. I think I'll test a few things out.
First, I will close the opened vents to see if it changes the water consumption, then, if that doesn't fix it, I'll test the water out.
Edited by shigshwa, 27 February 2012 - 08:15 PM.