I have just recently started playing seriously again, after about a year of hiatus. I used to play rock exclusively, and did not have to look at what I was doing much. Now, I am playing blues, jazz, country, and find I am plying much more complicated bass lines, that I have to watch what I'm doing more. I have started getting a little bit of pain on the right side of my neck in the back, and think it may be due to craning my neck while playing? Suggestions?