I also live in Corpus and am experiencing some of the same. Blossom drop can be caused by temps being too low or too high, same with humidity which is probably what we are dealing with now. It can also be caused by too little or not enough nitrogen, lack of water or stress induced by insects. I seem to deal with it every year but the plants usually snap out of it. I am also noticing it effects some varieties more than others. For example, this year it appears to be happening most on my potato leaf varieties.
As long as you didnt overfertilize, I think your plants will snap out of it and start setting fruit shortly

Here is a link that might be useful: link

Blossom drop is most often an environmental issue...temps are too cold at night, too hot during the day, too dry, or too wet. A sudden heavy rainstorm could do it...as could a cool front at the right time.

Occasionally there is a worm or insect problem, but you'd likely see that.

Thanks.
duajones, nice to see someone else from CC!