What Could Throbbing Pulse Followed By Pain In Neck, Temple And Shoulder Indicate?

Hi about a week ago i felt and saw a throbbing pulse on my left arm, it would go away when i would bend it, the next day that went away but i felt neck pain that radiated up to my left temple and down to my left shoulder, at one point i thought i was going to get a migraine because of the pressure i felt on left side of head and light was beginning to bother me, i also heard and continue to hear a kind of squishing sound when i turn my head or look up and down.That same night i felt a lump on my back, upper left side, which went down a cple of days later and the pain is slowly subsiding. Any idea what this could be?