Hi bs, on the face of it nothing too worrying, but I'd get checked pronto, just to rule out a retina detaching, or something else that can be sorted early.
Generally "arcing" is a symptom that needs looking at soonish rather than laterish.
If caught early, easilly repaired, I'd probably give the gp a miss unless you can get seen and refered early. An optician/eye hospital (in the uk) may be a quicker route.
Keep us informed.
