Hello and welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. Weight-related forearm pain can occur if you overuse the arm muscles -- especially if you push yourself too hard or weight-train daily. It can develop if you fracture a bone, sprain a muscle or strain a tendon in the forearm when using weights. In addition, you can also develop tendinitis. This condition occurs suddenly or from continuously repeating a particular movement, such as lifting weights over a long period. Take rest, use pain killer medication and cold compression. If symptoms not improved please consult your doctor he will examine and treat you accordingly. Hope I have answered your query. Let me know if I can assist you further.