Every morning for the past couple of weeks, I wake up with an upset stomach however as the day progresses I feel much better. Is there anything I can do to alleviate this?

Analyze your habits. What time are you eating at night? Do you drink coffee? Do you drink alcohol or smoke? Any medicines? Other drugs (otc or illicit?) if any above are yes- change your habits and see what happens. If it doesn't improve, see a family md.
In order to alleviate. Your problem , need to find the cause , hyperacidity , peptic ulcer etc , see your doctor , you are lucky it is free in uk , just have to wait in a long line , even very longer wait if you need a gastroscopy . Good luck.