Periostitis, or shin splints is quite likely. Currently affected by it myself, due to excessive training (army). Dont run for some time or only...
If you want to train your neck try out shoulder shrugs. That exercise doesnt need a lot of technique, but always make sure you do them correctly....
Thanks for the quick answer. :)
Thanks for this great workout plan, but I got a little question. How long should I always wait before doing another set or inbetween the reps (I...