I've been having weird sensations in my penis shaft since about a week now and its a kind of annoying tingling feeling which rises in tempo and becomes very uncomfortable sometimes. It comes at a random time and goes away after some time, this happens now about 2´3 times daily. Since it is recurring over the past week I'm beginning to worry and thinking about whether to consult a doctor about it. I've never had sex so it cannot be a STD I believe. Can anyone shed light on this matter?