What could be causing my sense of taste to change so much?

I’ve loved broccoli all my life. But in the last six months something has changed. Broccoli now seems as sulfurous as Brussels sprouts. It makes me feel like a kid who just can’t stand it.

Then, even more recently, green beans have started to taste weird.

What is going on? Can your sense of taste change later in life? Or could this be something having to do with lack of freshness of the food I’ve been eating?

Sometimes I would buy broccoli at the farmer’s market, but not eat it for a week or more. Then again, I ate some very fresh broccoli and it also tasted very sulfurous. I thought maybe it was a specific farmer’s broccoli, but then I couldn’t find any broccoli that tasted like it used to.

Have you ever experienced anything like this? Do you know why it happens? The only thing I’ve thought is that it could be the result of the drugs I’m taking that are changing my brain chemistry. Can anything be done about it?