Hi, practo user,
Sexual activities is not responsible for joint pain, you are suffering from.
Moving on bike for a long time in a constant sitting posture might cause elbow and knee joint pain, owing to nerves break, obstructing blood supply to joints.
Next Steps
your diet be easily digestible, low in sour and oily intake to check acidity might trigger your joint pain.
Go for aerobics exercise to restore proper blood supply to joints ,combating your problems.
Health Tips
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Consult on practo to get relief, faster.
Avoid, junk food,alcohol, fried and spicey intake
Tke, care.