Calf pain

Has anyone here ever experienced a blood clot in their leg? If so what were the signs? Or has anyone here ever had pain in the calf but it wasn’t a blood clot? What did it turn out to be? I ran on my elliptical the other day for the first time in forever, the next day I was experiencing g a lot of pain in my leg, more so in the back/side of my calf. Well 2 days later the pain still hasn’t gone away and it’s localized to just the one side of my calf. Im terrified of blood clots. But there is no redness or heat just pain and a slight slight swelling but not to much. Im booked to see my doc on Monday but just want to hear of anyone else has ever had calf pains before