What Causes Dizziness, Nausea And Loss Of Appetite?

Hello, I had horrible dizziness and nausea upon waking up yesterday morning. To ease these symptoms, I immediately laid back down. It eased, but I just couldn t keep laying down. I attempted to get up again, slowly, then went to the restroom, only to experience the same symptoms. So, I knew I had to get and make it back to bed; I did by the hardest. I continued to lay down for about two more hours and slowly sat up in bed. I felt woozy, but better. I also checked my blood pressure before laying down for 2 hours and it was fine, 120/74. I felt sluggish throughout the day with little or no appetite, but was able to make through the day. I m just concerned? What happened to me? These feelings messed up my entire day and I don t know what was wrong. Can you shed some light on what I ve explained to you?