I have made several trips on the Elizabeth Line and sometimes, I feel slightly unwell, when I get off.
Nothing serious, but I do wonder if it could be due to the depth of the tunnels.
- The tunnels are up to 42 metres below ground.
- I felt similar when I visited the hundred metre-deep tunnels at CERN, that I wrote about in A Visit To CERN.
- To my knowledge, I never knew my father to take a deep level Underground train. So perhaps, we share a genetic problem?
I also used to love flying in my aircraft at high altitudes.
Could it be the pressure or is it psychological?
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