I need to check datatype for some fields of my custom object.

String type= 'MyCustomObject__c'; // Say,this is my object
Map<String, Schema.SObjectType> schemaMap = Schema.getGlobalDescribe();
Schema.SObjectType leadSchema = schemaMap.get(type);
Map<String, Schema.SObjectField> fieldMap = leadSchema.getDescribe().fields.getMap();
for (String fieldName: fieldMap.keySet()) {
String mylabel;
//It provides to get the object fields label.
mylabel = fieldMap.get(fieldName).getDescribe().getLabel();
}
Now this type i.e. Object Name is varying time to time and I need to check fields data type.