Hi. I am a 21 year old female with a history of Raynaud's disease. About three years ago, I developed chilblains on both my fingers and toes. I have also been experiencing slight shortness of breath with or without exertion. I also sometimes feel as though I am not getting enough air in. During exercise or walking outside in cold weather, I experience a bloody taste in my sputum. I have went for ecgs, chest x rays, and pulmonary function tests, yet they have all come back negative. Within the last few months, I have been experiencing tachycardia, especially when lying supine. I have not yet seen a doctor about this complaint. However, every doctor I have seen about my other symtoms have been unable to find anything wrong. I have seen numerous GPs and a rheumatologist.
Any insight would be greatly appreciated.