Dear Katie,
Your son's
reactionAllergic reactions
Allergic reactions to medication
Dermatitis, reaction to tinea
Drug allergies
Febrile/cold agglutinins
Insect bite reaction - close-up
Intradermal allergy test reactions
Positive reaction to allergen
Transfusion reaction to frustration of his wishes is unusual, not so much because of his
angerIslets of langerhans
Ovarian cancer dangers
Pancreatic islet cell tumor, but because of the threats of killing himself. This is likely an attempt on his part to get what he wants (vs. an actual intent to hurt or kill himself).
Be sure you are not responding to these comments by capitulating to his demands. If you do defer to your son's wishes, you will be reinforcing the behavior.
Instead, talk with him at a time of calm about the unacceptability of his behavior. That is, comments about hurting himself aren't a reasonable response to having his wishes denied. In particular, you should prohibit his grabbing hold of any implement, such as a knife, and threatening self harm. Let him know that he can expect an automatic time out (in a chair) for such behavior. He needs you to set limits on this.
You might consider having him evaluated by a child behavioral health professional, to assess whether he is developing in a
normalNormal saline flush fashion for his age. His response to frustration will likely abate if you handle it as above, but an evaluation wouldn't hurt and would offer you guidance in managing him (even if he is developing OK).