I have noticed in the last few days that I have a lost of appetite and feel full really fast. I almost feel bloated. Any reason for concern?

Check it out. Many options including poor digestion, infection, ulcers, strictures or more. If persistant see your doc.
Too soon to tell. Are you taking any medications that could be bothering your stomach? These symptoms are nonspecific at this time but could be due to gastritis(inflammation of the gastric lining). At this time i suggest a bland diet, avoidance of caffeine and alcohol. For the bloating try mylanta 1/2 hour after meals and at bedtime. See your md if symptoms worsen or persist.