Return to the mat - week 4

Today marked the 1 month return to the mat teaching 2 BJJ classes each week and live training.  I'm happy to write that I've been able to consistently increase my mat time each week.  Today was four 5 minute rounds.  I'm still being careful but again I realize I'm not being careful enough.  It's common place in jiu jitsu to overdo it when you have someone trying to choke or armlock you in terms of your response.  Looking back on each match and I can see where that happened.  Thankfully, I feel ok this morning except for this pesky calf muscle cramp.  I got one last week and it returned again tonight but even stronger.  Time to do some research on muscle cramps.