The muscle pain could be due to excessive exercise after a break. This is commonly seen in heavy weight lifters. Also traveling on scooter places arms in one position for prolonged time. This emailcould have aggrevated the pain.
Next Steps
Take muscle relaxant prescribed by your family physician. Do some stretching exercises as pain reduces. If comfortable with ice packs use that intermittently.
Health Tips
Do not use hot packs.
Always do adequate warm and stretching before and after heavy weight workout. It's essential for recovery of muscles after exercise especially after heavy weight workouts.