Tomato-Uh-Oh

So, my bell pepper plants look awesome!  BUT…my tomato plants not so much.  I don’t know what I’m doing wrong – they are in the sun, it’s hot outside, they are getting enough water, but still they are withering.  Is it transplant-shock?  Will they recover?  Will I have to buy new plants and start over???  I’ll try to get some pictures tonight.  I was so looking forward to tomatoes, too!  So sad…