gotts: From your dosage description you may be able to increase your intake of both CoQ10 AND L-Carnitine and improve your recovery time. My condition is nowhere as severe as Ray's but I take a daily TOTAL of 600 to 900 Mg of CoQ10 now and around 1500 Mg of L-carnitine and Acetyl L-carnitine combined (1000 LC and 500 ALC) divided into three doses during the day. It keeps the cramps at bay, gives me more stamina, and helps me recover my muscle tone. I can't remember what Ray's intake is.
Headache is a sign you are taking too much CoQ10 and intestinal complaints a sign you are taking to much carnitine. It's different, it seems, for everyone, but your dosage MAY be a bit low. Also, CoQ10 can lower your BP by improving your heart function, especially if you are taking BP meds now; you should monitor that. In my experience, since we have no professional guidance as to dosage and side effect, you simply have to let your body tell you what to do.