My case exactly, Ken.
I live near the beach and travel to ski at 7000' level.

The first day I usually experience light headache and have to breathe
hard even walking up the stairs.
Next day is a race day and I get wasted just skating uphill. It gets a
little easier on the third day, but it is too late.
I feel like the same effort takes me 10 beats per minute less on the
sea level.

Can I increase blood acidity drinking lemon juice, vitamin C and
alike?
What are side effects of this drug?