“The Real Housewives of Beverly Hills” star Kyle Richards revealed Wednesday she began taking medication to cope with her “crippling anxiety.”

Richards revealed the personal information while responding to a Twitter user’s post criticizing the reality star for her response to costar Lisa Vanderpump during the Season 9 premiere of the Bravo series.

“The fact that @KyleRichards first response when LVP started crying was ‘I have s—t going on in my life too!’ just shows her true colors,” a viewer tweeted Tuesday.

Richards tweeted back an apology and explained her reaction.

“I shouldn’t have said that. I was referring to the fact that I was dealing with crippling anxiety & had to start taking medication for it. NOTHING compared to what Lisa went through,” Richards tweeted in response in reference to the death of Vanderpump’s brother Mark last April.

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Richards also explained in a Bravo blog post that her anxiety was “through the roof” when the season premiere was being filmed.

“Teddi comes to visit me at my new home (which I am finally settling into) to workout. We immediately start to laugh about everything. That’s what we do. Yes, of course, I think I’m dying again. I laugh about it, but the truth is my anxiety was through the roof during this time,” Richards wrote in the post.

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“My daughter Sophia was leaving home for the first time for college in a couple of weeks. If you know me by now, that is very difficult for me. I don’t do well with my children leaving the nest,” the reality star added. “On top of that, my one eye wasn’t opening all the way, and I had yet to figure out what it was. STAY AWAY FROM WEB MD!”