“What happened to my penis?”

The retraction of the penis is due to the lower extremity edema/swelling often caused by cardiac problems usually congestive heart failure. Although this is corrected with diuretics there can still be some residual swelling in the scrotum and genitalia to cause the continued retraction.

Thank you so much for contacting FATD about your current health concern. However, the limited information provided doesn't suffice to deduce a logical confident diagnosis. Yet, don't worry about it. To assist my patients to achieve the best possible medical care they deserve, I advise them to take time to view the post "What Should You Do When You Feel And Become Sick?" at https://www.foralm.com/post/www-foralm-com-what-should-you-do-when-you-feel-and-become-sick. Its contents will enable you how to knowledgeably and meaningfully interact with your attending doctors whoever may be. 
Besides, the posts in www.foralm.com provide lots of information regarding the urology field in specific and life in general, together, enabling willing souls to live a healthy, long, happy life. 
Here come my best wishes for health, happiness, and more to unfold. Have a very blessed day!

Chin-Lin Lin, M.D.

You have what seems like residual lymph edema. Often a situation that occurs after fluid overload or from congestive heart failure. You should consult your primary care physician soon.