I hope you are not holding your breath Jose! It looks like it, though. Because I don't see any bubbles, and those cheeks are pretty puffy.
Remember Rule #1 (by Jacques Cousteau, the OEM):
"Never Hold Your Breath While Using It!"
It also looks like you lost your snorkel somewhere, since you are in the open water, apparently. You should always have a snorkel with you when diving in the open water, because if you get separated from the boat, or you need to make a rough-beach entry, and your tank is empty, a snorkel will be your only salvation. Caves are different, but you don't look like you are properly geared up for a cave either (no cave lights).
I dunno about you, but, while diving, I do inhale sometimes. While inhaling, no bubbles come out of my reg.
Anyway, if I use a 7' hose without a can light (rare but it happens) I just tuck the loop under the waist belt.
You could put a knife, or just a knife sheath, over there in the meantime too. A regular size sheath like on a Blue Tang should be perfectly sufficient.
5' is too short IMO. Been there done that. 7' is better.