My father is a heart patient since 2002, he is 81 years old now. He got stroke in March 2015. He is using medicines like Eziday 50mg , Loprin 75mg , Lipiget 20mg , and Carsel 100mg . Since last 4 weeks or so, he is complaining abdomen pain as well as his blood pressure has been observed as very low. Can you advice please?