question: Dear DoctorI am a 20 Jr old female, and experiencing a weird/uncomfortable/dumb feeling in my left arm. I got this feeling ever since I can remember. But for the past 2 months I have this feeling and felt like it got worse. I have to hit my arm and give it some painful pressure or stretches to make it feel a little bit better, but that doesn't really work. I am experiencing with the left arm for 2 weeks now, shortness of breath, but have no pain in my chest. Today my hand started getting worse for I couldn't even hold my phone properly for it felt too heavy, and my arm was too weak to help me hold it. Although I can still move all my fingers and lift up my arm, the feelings of weakness comes and go, but still the weird feeling remains. Please can you help me?