By Scarlett O’Toole Kim Kardashian has admitted she’s in a lot of pain after suffering from an irritating skin condition, which one expert believes is the result of her “jet set lifestyle”. The 43-year-old reality star has been very open about her experience living with psoriasis, which causes itchy patches of skin. Taking to Instagram on Wednesday, Kim shared a video of her latest flare-up which can be seen on the lower half of her leg. Skincare expert Amish Patel has offered an insight into the skin condition and said Kim could be experiencing the flare up as a result of stress. Speaking exc…