What have ya done since ya bought it? Transplanted it into the ground or container? Fertilized it ?,,,,,lot's of questions to be asked before a possible solution could be found.

Be careful of what you buy at lowes. I have nothing against the store, they do have some nice affordable
stuff. I dont know what they do with their plants but I have noticed some of them just dont look too healthy.
I think some of them are overwatered.

Let's see... over watering, under watering, excess fertilizer, disease... should I go on?

Sorry, but there are just too many variables that affect growth and health to give you an answer without more information. Tell us exactly what you've done with this tomato since you bought it. Here are a few questions.

How long ago did you buy it? Did you leave it in a hot car? Describe the container and the soil used. When did you notice it was sickly? Tell us about your watering habits and if you've used any fertilizer, how much and what kind. Is the pot in a very hot location, i.e. on a sunny patio against the south side of the house? What has your weather been like?

If you can post a good close up picture, that might help.

Sorry you first experience has been so poor. It takes killing a lot of plants to make a good gardener. I've been at this for (mumble, mumble) years (more than I'm going to tell you!) and I still kill plants every year.

Sandy

And in addition to all of Sandy good questions, do you see any signs of tiny pests on it - look closely. Aphids and whiteflies are very small but in large numbers they can be lethal to plants. An infestation of them can produce exactly the symptoms you describe. But then so can several other things.

More details please.

Dave

Be careful of what you buy at lowes. I have nothing against the store, they do have some nice affordable
stuff. I dont know what they do with their plants but I have noticed some of them just dont look too healthy.
I think some of them are overwatered.

Here we are at least 4 weeks away from last frost and planting out date...but our Lowe's and Walmart both have plenty of full sized tomato seedlings out already. And they let them out in the dreary 40s and 50 degree weather. I don't have anything against both stores - I love them in fact. Maybe it's Bonnies plants that has the problem. I saw they had some stevia the other day, so I pulled off a leaf and found that it was barely sweet at all...I think they start their seeds too soon and over-fertilize them too. Only greenhouse growers would buy those plants at this time of year