Arm Injury

ok, two days ago I was doing heavy (for me,220lb plus) V handle pushdowns at lat machine and when I come back home I felt pain in my arm, right under the right biceps,i mean i can flex my bicep but touching the arm I feel pain right down (brachialis), also when my arm is relaxed and along my side I feel pain,if it is bent not.
have to take some anti-inflammatory? better to go to doc???