Suggest Treatment For Muscle Twitching & Swelling

I am a 41 year old female diagnosed with hypothyroidism 1 year ago. I continue to have painful swelling in my face, hands, and ankels/feet. I've started an anti-inflammatory diet, which has dramatically improved the swelling in my feet and hands but not as much in my face. I also have difficulty smiling or showing facial expression...my facial muscles twitch and shake. What else can I apply to my lifestyle to help with muscle "twitching" ?