Welcome to PsychCentral Marcus. Self-esteem and security issues can lead to feelings of anxiety so it might be difficult to separate the two. The thoughts and feelings you are having might be on the normal side of the spectrum of life (who doesn't become jealous at times?) ... or they might really be impacting your well-being and functioning. That is the filter I run my life issues through - if it is really affecting my happiness and my functioning, then I need to address it.