Please help

My left leg has been swollen and hurt on and off since june 2019. A dr in june/july told me that it felt like a bakers cyst behind my knee. Went to the emergency room about a week later and had a d dimer blood test done and it was negative for a blood clot. Fast forward to this past week or so. My leg has hurt horribly and I couldn't take it anymore so I went to the urgent care center. The dr said it felt like a bakers cyst also. For some reason, i am still so afraid of it being a blood clot in my leg. Should i still be worried and anxious that it is a blood clot? Someone please help I feel like a crazy person. I've been working a lot recently on my feet for hours straight and it doesnt hurt as bad now since starting this job.. it is a little bit bigger than my other leg but no redness or warmth. Im 21 years old, am not preheat pregnant, and do not take any birth control.