Walking around Tesco and to university lectures left a 19-year-old woman breathless and wiped out and she knew something was wrong.
Charlotte Carney was studying Forensic Psychology at Liverpool John Moores University in 2015 when she first realised the issue, CheshireLive reports.
The now 25-year-old struggled with breathlessness, despite being a regular a gym-goer and feeling otherwise fit and healthy.