Traditional Culture Encyclopedia - Weather inquiry - Why is it uncomfortable to take Metro Line 3 from Guangzhou to Panyu?

Why is it uncomfortable to take Metro Line 3 from Guangzhou to Panyu?

The subway is very fast, which causes changes in eardrum and tinnitus. I think it has something to do with personal physique. I will feel this way whether I take Line 3, Line 2 and Line 1. When the ears are uncomfortable, you can chew gum and the like to relieve it, but it is generally fine and has little effect on your body.