Rose, who is still in Spain, first announced her condition and subsequent cancellation of shows via Instagram on Friday.
"Tonsilitis and unable to fly because of the pain it's causing my ears means no more shows and I have to stay put before returning home :(," she explained. "sorry guys. I didn’t even know you could get tonsillitis after like, 16."
Fans started calling Rose's excuse into question, forcing the actress to later defend herself.
"It's upsetting to see people questioning me getting tonsillitis .. And cancelling 2 of 15 shows in a month.. Off the back of filming a movie," she tweeted.
"But I don't party, I've not been to one club except when playing here and I've had a 3 day vacation with childhood friends I flew out.." she added. ".. Where we slept, watched movies and went to the beach. I dont drink as everyone knows, I'm run down and got tonsillitis its that simple."
The Orange Is the New Black star continued to defend her decision to cancel the tour dates, referencing all the hard work she's put into recent projects. "Lastly, I trained hard for 3 films and continue to train hard, more than ever in my life.. I'm fit (well before I got sick ). That's all," she noted.
"I don't care what 'people think' but I wanted to clear it up for the fans. However you should know me by now," she concluded. "Off socials again while I rest."