Can fibromyalgia affect your speech?

I am new to the diagnosis of fibromyalgia and have been trying to educate myself. Last week I went to the emergency room because I suddenly was lisping, had difficulty breathing, dizziness and elevated blood pressure. I have never lisped before but my mouth is not functioning as it usually has. It feels like my jaws are not aligning. I am not crazy, this really happened and is continuing. Nothing wrong dentally. But of course, the ER could not find anything wrong with me, and my primary care physician asked if I were depressed and seemed to indicate that I was malingering. So has anyone else had fibromyalgia affect their speech?