By Aidan Lewis and Emma Farge SHARM EL-SHEIKH, Egypt (Reuters) – The family of jailed Egyptian-British hunger striker Alaa Abd el-Fattah said on Tuesday they had not heard from him since he had been due to stop drinking water two days ago, and the United Nations human rights chief warned his life was in great danger. Abd el-Fattah, a prominent activist and blogger, was sentenced in December 2021 to five years on charges of spreading false news and has been on a hunger strike for 220 days, since April 2, against his detention and prison conditions. In an escalation that coincided with the arriv…