Symptoms Include: Muscle Fatigue/cramping/pain, Heart Racing, Speech Difficult, Anxious, Shortness

symptoms include: muscle fatigue/cramping/pain, heart racing, speech difficult, anxious, shortness of breath. I have had 3 of these episodes in the last 3 weeks, first one being the most severe with inability to speak certain words. All episodes are followed with a feeling of lethargy almost like someone turned off the power button on my body. My speech slows as i recover from the episode and it takes a couple hours to feel normal again.