Achilles Tendon Pain/Aches

Last spring I strained my Achilles tendon while running. I took a few weeks off from exercise to allow it to heal and was able to continue with my exercising as normal. Lately I've noticed my tendon has been aching . I live in PA so the weather is cold, below freezing most every day. I'm wondering if it just aches because of the cold or if it is the onset to something more serious. I am very hesitant to workout as I don't want to tear it. I've been icing it in the evenings. Has anyone experienced this before? Other than seeing a doctor, any suggestions?