'It’s challenging': Cheryl talks motherhood and Liam Payne

She's been hit by claims her relationship with Liam Payne is strained.And Cheryl gave an insight into the last few months of her personal struggles as she admitted she was finding motherhood 'challenging'.Speaking to The Mirror at The BRIT Awards on Wednesday, the 34-year-old singer - who shares son Bear, 11 months, with beau Liam, 24, spoke candidly about her family life, amid claims she is planning to relocate.Discussing motherhood, Cheryl admitted: 'It’s challenging, that’s for sure, but when you’re with him it makes none of that relevant.' Yet she was full of praise for Liam amid mounting speculation over their romance, explaining: 'I’m great, it’s been a good night and I’m proud of him.He’s so good.' The report comes amid claims Cheryl is planning to move house from the £5million mansion in Woking, Surrey that she shares with Liam and Bear, in order to be closer to her best friend Kimberley Walsh.A source told The Sun that Cheryl is keen to explore a move to Barnet in North London where her former Girls Aloud bandmate lives.The insider said: 'The search by Cheryl’s employee has been going on for a while.'They’ve has got Statons in Barnet involved.They helped Cheryl with her property after she split from Ashley Cole.' A source added that Cheryl is hoping to buy a larger property for the family after a plan to extend their existing home was rejected.MailOnline has contacted both stars' representatives for comment.It follows claims that Cheryl and Liam went their separate ways after the BRITs, with the Girls Aloud singer heading to their Surrey mansion while her beau stayed in a budget hotel near Heathrow.It comes amid mounting speculation that their relationship is strained, with the songstress hitting back on Twitter at those who labeled their amorous display on the red carpet a 'stunt'.A source told The Sun: 'Despite their over-the-top show of affection they went their separate ways.'Cheryl headed home to their family home, alone, and Liam spent the night at a dingy airport hotel.For a couple who are going through tough times they’ve spent next to no time in private trying to fix things.' Despite their Surrey mansion being a thirty minute drive from Heathrow, Liam opted to stay in a hotel next to the airport.It's been claimed their busy work schedules have put a strain on their relationship, with the couple not spending a night together since rumours surfaced that their relationship was in trouble on Sunday.A source told MailOnline that Liam stayed in the hotel after the award ceremony to catch an early flight to Miami, while Cheryl's work commitments in Newcastle earlier in the week meant they were unable to spend a night together.Liam brushed off split rumours as he took to Instagram to show him picking up some items for his 11-month-old son Bear in a baby boutique after landing in the USA on Friday.Sharing a snap of himself perusing a selection of baby clothes, the doting dad captioned the image 'Bear shopping', using the emoji instead of