It would not hurt to be seen, I'd rather you be safe than sorry.
Not to scare you but my mother was recently hospitalized due to blood clots in her legs (only discovered in leg after she could barely breath due to many blood clots in both her lungs)...
Reason I say this, she had no redness or swelling in her leg...she recalled mild discomfort weeks earlier and nothing else.
Birth Control increases the chance of blood clots.