Sounds very similar to what I've been experiencing with my peppers and tomatoes. My tomatoes had severe leaf curl - they looked very pitiful, although they were flowering and setting fruit. My peppers didn't look quite so bad, but they were getting light green - yellowish (instead of a healthy dark green), and they had the dark joints you're describing.

I did a home soil test (from a big hardware store), asked on this forum and dug around in some other places and ended up leaning toward thinking it was lack of nutrition in the soil and/or herbicide damage from my neighbor's lawn treatment.

I top dressed with compost and a potting mix with slow release fertilizer (I used Miracle Grow), and I also sprayed with Miracle Grow tomato fertilizer. I did all that on Monday (three days ago), and things are really starting to look better already!

I don't know if nutrition is your problem or not, but it was at least one of mine - feeding has made a noticable difference!

We have gotten alot of rain also..but the plants are in a raised bed and should drain well..wonder about the dark spots??I have used miracle grow on the soil..someone mentioned trying spraying a mixture if epsom salts and water on the leaves to help neutralize and add magnesium

Dark spots are normal at pepper leaf junctions.

I am having the same problem with my tomatoes. The flowers don't seem to have been bothered yet. I asked the guy from the greenhouse down the road and he said that it is most likely all the rain and cloudy days we have had lately. He said once the sun comes out and it dries up a bit they should be fine. I am also using Miracle Grow.

Might be a calcium deficiency. I've seen young, cupped, stunted leaves on alot of plants, especially apples. Can result from fluctuating soil moisture, excess of other nutrients like nitrogen (especially ammonium) and magnesium, and maybe potassium. A foliar spray of calcium (e.g., calcium chloride) could help. Just a thought. If you experience alot of blossom-end rot, then I'd suspect lack of calcium even more.

Thanks for all the ideas...I picked up some epsom salts.[magnesium sulfate]..going to mix 1 T per gallon and spray on leaves...sooooo will see if that helps...hope the rain lets up for awhile..never thought I would say that