Special Consideration - Bereavement

Hi, I've been very unsure of what to do about my current situation. I'm doing my A-levels and I've already done 3 of my exams last week and have a few more coming up in the next couple of weeks. Almost a month ago my grandad had to urgently go to hospital but was discharged in a very bad condition about a week and a half ago. Ever since then I've been helping care for him and helping to communicate with carers/nurses, I was happy to do this bc I was very close to him and wanted to help a much as possible, but I felt drained and pretty much didn't prepare for the exams I had that week. Unfortunately he passed away a few days ago and I've been distraught since, I feel guilty even thinking of applying for special consideration but I've not had a chance to revise at all for the past few weeks on top of all the emotions I've gone through and I'm scared that I won't do as well as I need to. I'm unsure whether to try special consideration or just notifying my University directly or who to even speak to. Any guidance would be appreciated.