Is it normal that when i smoke weed my right arm hurts

i stopped smoking weed about three years ago. I smoked it every day without fail for years. I ended up giving it up because it was becoming detrimental to my health - you know, the usual stuff like paranoia, panic attacks and depression. Since then I have learnt to deal with all of this and I am a lot healthier now.

I now believe that all of these symptoms were underlying problems and not something brought on by the consumption of drugs. The reason Im giving you the back story here is just so that you understand I am by no means new to smoking and that its not something I'm imagining.

Anyways, on to the question. I started smoking weed again at Christmas, just as a nice little present to myself and I had no problems at all. Over the last couple of weeks though I've been getting uncomfortable aches and pains across my right peck and down my right arm, when I have a smoke it seems to amplify it. The pain isn't unbearable it's more of a mild annoyance.

Does anyone have any idea what this is or what I could do to prevent it? Oh and most importantly is it normal to feel odd aches and pains when high?