Hi, I Came Of A Cruise Yesterday Morning, 3 Days

Hi, I came of a cruise yesterday morning, 3 days prior whilst on cruise I went snorkelling the next day had an ear ache, the pain feels like a little electric shock then painful, at times the pain travels to my eye, I have a sensitive but painful feeling on my head, to touch at first it's sensitive then is painful. All this is on my right side. However on my right buttock, it feels like it's on fire and painful all the time. I did notice I had little bits all over after snorkelling also. Should I see someone or is it in my head as I feel ordinary. I have still got sea legs as I'm dizzy and tired. I should mention I was having headaches and today I am sweating but have no temperature and my blood pressure is normal. Thanks in advance for your advice. Linda