Last night I struck out to run 4 miles at 11 pm. At under 2 min. I suffered severe chest pain and shortness to no breath. I restarted 2 min later and completed 2 miles.
Today, in response I ran two tests to determine if I need to see a doctor.
Test #1: Endurance - At lunch time I ran 5 miles at 7.6 mph to test endurance. No major events. As always I have slight chest pains within the first 3 min. of a run. My heart rate max'd out at 140 bpm and averaged 130 bpm which is well within Zone 3 as expected for me.
Test #2: Stress - After work I ran 2 miles as fast as I could manage, 14 min 24 sec (ave 8.35 mph). Max heart rate was 150 bpm and average was 142 bpm. No issues at all.
That was 7 miles in one day and and in my non medical opinion, something happened, but I survived it. I chalk it up to the calcium supplement that I started taking 48 hours ago that had a negative effect on my system. While I tolerated this supplement in Feb, Mar and Apr. I did not use it in May and now I can't tolerate it. That's too bad since I don't drink milk anymore.
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