Welcome Shorty. You're not alone, age wise or pain wise. As 10 wheels suggested, check with the folks in the 50+ forum. You might also find some help in the General Cycling forum. Maybe it's as simple as a saddle height or position problem. Read on.
Good luck and keep us posted.
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The Lord is merciful and gracious, slow to anger and abounding in steadfast love. - Psalm 103:8
I am a cyclist. I am not the fastest or the fittest. But I will get to where I'm going with a smile on my face.