Sir Paul McCartney suffered a heart scare triggered by the stress of his split from Heather Mills, it has been claimed.The former Beatle visited London's Harley Street clinic earlier this week for a full body check-up, including tests on his heart, following concerns that his acrimonious divorce was affecting his health.The source told Britain's Daily Express newspaper: "Paul came in with his daughter Mary and was complaining of not feeling well. He was seen straight away by a specialist who gave him a thorough examination. He was checked for his heart rate and blood pressure."He looked quite pale and was obviously feeling out of sorts, but after a thorough examination he was given the all-clear."He is obviously going through a tough time and he is not getting any younger."A spokesman for Sir Paul denied the visit was caused by a health scare.They said: "Sir Paul had a routine, regular check-up. It was not to do with his heart and was something planned for some time."

The musician has gone through a difficult time since the couple announced their separation in May.

The pair now look set for a bitter battle in the courts despite Paul reportedly offering Heather

£30 million for a quickie divorce.

Earlier this week Heather found herself locked out of the estranged couple's London home when she tried to drop off their two-year-old daughter Beatrice for a pre-arranged visit, because Sir Paul had reportedly changed the locks.