God doesnt need to change laws of nature to perform a miracle because He put those laws there for a reason. my aunt in law died in an accident when she was young. actually it was at the hospital but the accident caused it. the doctors pronounced her dead and wrote up her death certificate. about an hour went by and her father was there in the morgue praying when she came back to life. she has no brain damage nothing is wrong with her. she now has a birth certificate and death certificate. thats a miracle. as far as suffering in the world goes. each one of us will stand before God on judgement day these people that cause the suffering will be punishedEvil, pain and suffering are a part of life. God didn't promise us that we wouldn't have to endure these things, but He did promise to be there with us and strengthen us through them. We grow spiritually when we are faced with these things and find joy when we overcome them. Through our weakness we are made strong