Hi....... i've always had spots on my upper arms and back from when i was a kid and apparently it was due to having asthma at a young age or something?? I've "grown out" of asthma now and no longer have it.

About two days ago i noticed that i was getting spots on my stomach. Some are clusterd together and raised above the skin, while there's also alot of normal looking spots everyweher which arn't raised. If i run a glass over the top they all dissappear but just wonderd what could have caused it? Could it be an allergic reaction to something??

here are some pictures i've taken 5 minutes ago, i've drawn arrows to the clusters of raised spots.... any help or advice would be appriciated