Hello! I'm having an issue with my tomatoes, and was hoping one of you could help. I'll admit I'm no gardener, I just like to have fresh tomatoes in the summer. This year all my tomatoes have a yellowish ring all the way around the fruit under the skin. I've never had this happen before, and was wondering if it is anything I've done (or not done)? And are they safe to eat? I've looked and haven't found much online. I've included a picture that I hope shows my issue. Thanks in advance!