Hello, Customer (name blocked for privacy)
Please supply me with some additional information. How long have you noticed the problem with your stomach? A testicle should not be too hard but it should hurt before you can press too hard. I have had the problem with my abdomin. Usually it occurs when the abdominal wall needs to expand but the person disallows that.
Are you still feeling this pain at the time you are reading this message?
I hope to hear from you.
Best Regards,
G.L. Health