Is this a disease?

[cee219]

I've had my male Betta for about 2 months in a 1 gallon aquarium with biweekly 20% water changes. The temperature is at about 74 F. I really can't remember if his front has always just been pale (bad memory) or not, but I've noticed it's been getting rather cloudy and a shinny gold has been developing especially in his front. Please look at this photo, it was really the best I could get and I took it 2 weeks ago.

I can't be sure, but I think I see a tiny little "salt crystal" suggesting ich, maybe. I'm a little worried about using medication because I'm afraid I'll just kill him, can I do the heating method and will a male Betta be okay with it? Thanks so much, I'm a super fish newbie