I had a fall at work in 2013 which subsequently lead to an operation to remove the meniscus from my left knee, because I had a sever limp since the fall it has aggravated my right hip causing sever pain in my right leg ,I was prescribed Co-codamol 30/500 along with paracetamol ,but found the Co-codamol was making me constipated ,so my doctor then prescribed tramadol along with paracetamol 2 of each to be taken up to 4 time daily,i stopped taking the tramadol recently and cut down paracetamol to 2 tabs twice daily,i have had headaches ,coughing ,sneezing bouts,restlessness at night unable to sleep,is this normal ???