Hello,
Persistent swelling and pain in the pubic and incision area, combined with bladder weakness and 
constipation, can be exhausting. Your symptoms are indicative of fluid build up or internal hematoma. It can also be due to post-surgical infection. Bladder or 
urinary tract issue or nerve tissue healing pain. You are advised to get a follow-up clinical examination done by your Surgeon.
After clinical examination if infection has been ruled then get a pelvic 
ultrasound or CT scan done to check for fluid collection, abscess, or hernia. Apply warm compresses (not hot) on the pubic area for 10–15 minutes to ease pain and promote circulation. Avoid lifting, bending, or long sitting. To get relieve, you can take 
acetaminophen, one only after lunch to help subside pain and inflammation. Avoid 
self medication. Get urgently examined so that treatment can be started before symptoms get worse.
Take care. Hope I have answered your question. Let me know if I can assist you further.
Regards,
Dr. Nupur K., General & Family Physician