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That’s actually worth paying attention to. I had a scare like that after a long trip - one calf felt warm, kinda sore, and slightly swollen. Turned out not to be a clot, but the doc said the combo of warmth, tenderness, swelling, and sometimes redness (usually in one leg) are the main warning signs. If it starts hurting more or you notice swelling spreading, don’t wait it out. This breakdown helped me understand it better: early stage blood clot in leg symptoms vs muscle cramp - simple and clear.