"Doctor care/ feel worse now then when i came..."

I want to hospital with right/left arm / neck pain,feeling very dizzy when walking,weakness in arm/legs head hurts.the doctor in a&e said we will admit you going to do ecg/ bloods and x-ray of the heart to rule out heart attack,was moved to CDU ward same day kept asking to speck to doctor to give me up date.doctor came at 9.20pm said your heart is ok but Enlarged on x ray told them feeling dizzy head hurts was told another doctor will see you later,no doctor came till next day said your arm and neck is not heart related and we will discuss why what is causing arm pain/dizziness i asked about last night doctor who told me my heart is enlarged they said not to worrier about that,i asked why to I will weak/head arm pain like i am going to faint.they said they will discuss my case with other doctors and get back to me. no new tests were done why i feel dizzy head spinning weakness. Nurse came to me in the afternoon and said i was being discharged and give me latter with no medication,i said i need to speck to doctor who saw me in the morning they told me they will come back and see me/that doctor did not come send other doctor who was with them. i said i feel worse now then when i came in please i do not feel well my head is hurting me my all right side is weak when i stand up dizziness gets bad/was told to they have arranged a out patient mri for me and if gets bad go and see your gp or come back again. they only done tests on first day to see if i had heart attack nothing was done why am having weakness arm-legs/dizziness head pain on right side or why is my heart enlarged on the x ray as there is history of dilated Cardiomyopathy in my family and sudden death . the doctor in CDU ward in the morning just don't care was not interested in my other symptoms.the Symptoms that took me to hospital in the first place.it is a top hospital the best in the uk feel bad writing this but feel really let down as my symptoms are getting worse each day i feel i am / my Symptoms were ignored by doctor.