do I have stomach Cancer?

Hi, I am feeling like many of you, This unwell feeling started on 6th Aug about 6 weeks ago now and I still have all the symptoms, I have no appetite, were as before I never ever felt full, but now I can only eat very tiny amounts, rice or soup and feel full all the time. I have constant tummy pain, and all over body pain in my back and arms and legs and I feel sick all the time mostly when I wake up in the morning and by the afternoon I start to feel brighter, but my GP has given me medication for the sickness and as I have a history of having a sliding hernia I am hoping it MIGHT be something to do with that..., But I am very scared that its could be Cancer...I have seen my Dr ,But I understand they can not always tell from blood tests alone if you have Cancer. My bloods were showing I have raised inflammation, I am also awaiting to see a specialist, but as its the NHS I have a long wait, My Dr is also arranged a Scan, No date for that as yet, I am not sure if its a CT scan or pet scan that I am having, but I am sure what ever scan they will do they will be able to give me more information. I awake hoping that this feeling will go away and I will feel better but its seems to be going on for longer than I was hoping, I have not been sick just the feeling of sickness, IF it was Cancer would I be sick?