I'm with Diane on HR of 120, Barbie, esp. if he's been tachy (>100) for days, and is not normally. Sats may or may not correspond, again not knowing his baseline. Temp, as others have noted, is more important in terms of change than a raw number. Many people have a baseline of 96-97. AD changes can increase heart rate, which itself could prompt coughing, maybe need for naps too, but it's worth considering alternatives as well.
At the least, I would want a doc to listen to his lungs and heart, to make an informed recommendation as to the need for a CXR, and he might feel better at least knowing what he might be dealing with. Why not give the doc a call?