I'm suffering from shortness of breath, chest pain, pain n burning in leg, groin, lung. d-dimer negative, ctpa clear..what else can i do?

Symptom complex: You present a spectrum of symptoms suspicious for pulmonary embolus. The group of studies you list are all negative for that diagnosis. Next steps depend upon the physician's assessment of the situation and whether further steps aimed at PE are still appropriate or if seeking other diagnosis should be done. Discuss with your doctor and get his assessment.