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I have looked on the net for what ails this poor thing,as unfortunately it ails several others too and still cant make my mind up what is wrong with it.Any suggestions??

BB, I had tomatoes that did that one year, when I opened up the leaves there were caterpillars all nice n snug in cocoons!! (But I was living in Bda at the time!
Could it be leaf curl? Says in one of my books "the inward curling of young leaves is usually taken as a good sign if they are dark green"  Doesn't explain why tho......sure someone far more knowledgeable than I will give you a definate answer ;D DP

Oh my dont tell me it's alright Dottiei've already wizzed half a dozen as i been growing them for *ty years and its never happened before.

You got time to go to chat?

Severe chill - it won't kill them - I reckon!! = Tim

Definitely more like temperature problems rather than virus, if there are no insects in view.

I'm inclined to disagree with Tim and Eric. Looks diseased to me, although some cultural notes would change my mind. I would dump them.
I would point out that not all viruses are transmitted by insects so their presence, or absence, is not a measure to go by. Viruses not transmitted by insects includes Tomato Mosaic Virus (which I don't think yours has) as it is to large a RNA chain to enter the plant through the incission made by the sucking mouthparts of aphids or whitefly.

complete novice here. it looks a bit like downy mildew caused by drought stress but this is a wild guess.
Hope it gets well.
cheers suzy

This is severe downy mildew on tomatoes:
http://www.inra.fr/Internet/Produits/HYP3/images/6033445.jpg
Additionally leaves do not curl up during moisture stress, only during heat stress. I doubt the U.K. has experienced that yet.

 :) :DThe very sick Tomamto has now grown into one very big and healthy Tomato with many flowers. Wish that i hadnt wizzed the others now :'( :'(