i do not know anything about you or your medical history but based solely on the brief information in your question i would say that worsening pain. and an enlarged spleen would meet the criteria for going to the hospital instead of waiting.
i have and enlarged spleen and the pain is worse then ever should i go to hospital? . my doctor put my on very strong pain killer for the spleen and my gallbladder pain unfortunitly the pain in my upper left stomich is getting worse even with the pills i need to know i i shouldgo to the hospital or wait to see my family doctor again