Back in October of 2014 i started getting a dull achey pain in my left knee. The knee pain occurred at night eveytime i bended it. Now here recently i started getting the same symptoms in my right knee and have noticed everytime i sleep my arms go to sleep now. Also i get constant leg cramps. it feels as if bubbles are bursting in my legs constantly. Could this be a symptom of a DVT? i started birth control like 4 months ago. Im trying not to worry but its really hard. im 18 years old btw.