Villa, who is Spain's second highest scorer with 31 international goals, is one of the continent's most coveted players in a summer transfer window that has been injected with both money and intrigue by Real Madrid's world record signings of Kaka and Cristiano Ronaldo.
Chelsea and United lead the chasing pack from the Premier League, though the player has oft stated a desire to remain in Spain, handing Real the initiative.
Valencia, despite their chronic financial problems, are holding out to get he best possible deal from a heavyweight auction and Villa says he would much rather focus on helping Spain to win the World Cup warm up event in South Africa than answer questions over an uncertain future, report the Express newspaper.
'Nobody can know how dreadful the past week has been for me,' he said. "It was really bad with all the speculation going on and everyone always asking me about my future.'
'My family has advised me to focus strictly on the football so that is what I have been trying to do – and will continue to do over the next week while we are here in South Africa.'
International strike partner Fernando Torres claimed this week that Villa would not be joining him in England though Villa was tight lipped when asked the inevitable question over his likely destination.
'I am not going to say anything concerning my future at all,' he said.
'I just want to enjoy the Confed Cup, help my team win the title and keep on scoring goals – trying to catch Raul at the top of Spain's all-time scoring list.
'I am trying to prove during training and matches that this is not getting to me, but it's hard to cope in between the active sessions and the games.
'The only realistic comment I can make about next season is that I don't know where I am going to play. I am trying not to let my performances be affected by all this.'